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Cat Names
Below you find all the cat names starting with a S.
- S'Kitty (from CatFantastic)
- S'mores
- S**tBird
- S.C. ("Slut Cat")
- S.C. (Stupid.Cat)
- S.F. (Stupid Face)
- S.F.B. (= Sh*t for Brains)
- S.N. (Snore Alot
- S.U.S.A.C. ("Shut Up Shit Ass Cat")
- Sa'Jin (Korean)
- Saab
- Saabre
- Saavik
- Saba
- Sabastian
- Sabbaee
- Sabbath
- Sabby
- Sabella
- Saber
- Saber-Tooth
- Sabian
- Sabina
- Sabine
- Sable
- Sabra
- Sabre Tooth
- Sabria
- Sabriel
- Sabrina
- Sabrina Snow
- Sacco
- Sacco The Amazing Fetch Kitty
- Sachiko
- Sachin
- Sackett (from a book about a family named "The Sacketts")
- Sacko
- Sad Sack
- Sada
- Sadaka (means "charity" in Turkish)
- Sadhi
- Sadie
- Sadie Hawkins
- Sadie Jadzia Hommel
- Sado
- Sadora
- Safari
- Saffi
- Saffiare
- Saffron
- Saffy
- Safi
- Safram
- Saga
- Sagan
- Sage
- Sage Felicity Bridgette
- Sagebrush
- Sagwa
- Sahara
- Sahib
- Sahiba (Arabic for "female companion")
- Sail
- Sailor
- Sailor Boy
- Saint
- Saint Ashlar
- Saint Inklemann
- Saint Paw
- Saint Pawl
- Saja
- Sajak
- Saji
- Sake
- Saki
- Sal
- Salamaller
- Salamander
- Salem
- Salerno
- Salley Cat (Female alley Cat )
- Sallie
- Sally
- Sally Luna
- Salom
- Salome
- Salon
- Salsa
- Salt II
- Salt/Pepper
- Salter
- Salty
- Salvador
- Salvatore
- Sam
- Sam Cat
- Sam Furman
- Sam I Am
- Sam Spade
- Sam The Ratcat
- Sam-Girl
- Sam-I-Am
- Samantha
- Samantha Meowington
- Samara Kitty
- Samatha
- Samatha Louise
- Samba
- Sambo
- Sambrina
- Sambuca
- Sambuka
- Samda Cat
- Samflash
- Sami
- Samitha
- Sammantha
- Sammi
- Sammie
- Sammieguy
- Sammsa
- Sammy
- Sammy Blacfoot
- Sammy Dash
- Sammy Davis, Jr.
- Sammy Malone
- Sammy Silverpaws
- Samori
- Sampson
- Samson
- Samson And Delilah
- Samtu
- Samuel
- Samuel Adams
- Samuel Jackson
- Samuel Peckinpaw
- Samurai
- Samus Aran (from the Nintendo game "Metroid")
- Samwise (Lord of the Rings)
- San Soo
- Sanani
- Sanar
- Sanborn
- Sancho
- Sanctifikitty
- Sand Rat
- Sanders
- Sandie
- Sandler
- Sandler (after the actor Adam Sandler)
- Sandman
- Sandoval
- Sandra
- Sandrake
- Sandrine
- Sandy
- Sandy Claws
- Sandy Koufax (after Sanford Koufax, baseball pitcher)
- Sangievese
- Sangria
- Santa
- Santa Fe
- Santa's Little Helper
- Santal
- Santana
- Santaria
- Santi
- Santi (aka santi claws, a found cat who had been stuck in a chimney 4 days)
- Santini
- Santo
- Sany
- Saphi
- Saphi (short for Sapphire Eyed Baby)
- Sapphire
- Sappho
- Sara
- Sara Burnheart
- Sara Lee
- Sara Rose
- Sarabeth
- Sarabi (from The Lion King)
- Sarafina
- Sarah
- Sarah's Champagne Truffle
- Saraneth
- Sarasota
- Sarge
- Sargent
- Sarha
- Sari
- Sarina
- Sarj
- Sarsaparilla
- Saru ("sah-roo")
- Sasa (after the DJ from Hong Kong)
- Sasaparilla
- Sascha
- Sasche
- Sasha
- Sasha Jhoie
- Sasha Silvertoes
- Sasha Whitebelly
- Sasha Yar
- Sasha-Pasha
- Sashapuss
- Sashi
- Sashimi
- Sashquatch
- Sasquach
- Sasquatch
- Sasquatch (has extra toes and hence is a bigfoot)
- Sass
- Sassa-Cat
- Sassafras
- Sassafrass (Sassy)
- Sassea
- Sassenach (those who are not Scottish)
- Sassette
- Sassy
- Sassy McCat
- Sassy Pearl
- Sassy Stinson
- Satai (pronounced suh+tie - from the tv show Babylon 5. It means revered one)
- Satana
- Satay
- Satchel
- Satchmo
- Satellite
- Sati (Egyptian Goddess whose arrow was so swift it kept rivers flowing)
- Satin
- Satin Doll
- Satin Doll Baby
- Satine (after the character in the musical 'Moulin Rouge')
- Sativa
- Satori
- Saturday
- Saturn
- Saturnian Amulet
- Sauce Or Saucy
- Saucey (for Saucier Mississippi)
- Saucy
- Sausage
- Sauvage
- Savage
- Savanna
- Savannah
- Savernake
- Savoy
- Savvers
- Savvy
- Sawda (Female Arabian name, meaning "black one")
- Sawyer
- Saxon
- Saxton
- Say
- Sayonara
- Scally Wag
- Scallywag
- Scaly Joe
- Scamp
- Scampennelli
- Scamper
- Scamper Baby
- Scampi
- Scampurr
- Scandalous
- Scar (from The Lion King)
- Scaramouche (a character in the play "Scaramouche")
- Scarborough
- Scardey
- Scardie-Cat
- Scare Muche
- Scaredie
- Scaredy
- Scaredy Cat
- Scarface
- Scarlet
- Scarlett
- Scarlett And Rhett
- Scarsborough the Fair
- Scary Mary
- Scat (as in Scat-Cat)
- Schatzie
- Scheherazade
- Schizo
- Schlumphene
- Schmedl
- Schmeichel
- Schmitty the little kitty
- Schmoo
- Schmooze
- Schmoozer
- Schmuckie
- Schnapps
- Schnee
- Schnee ("snow" in German)
- Schnickles
- Schnitzel
- Schnitzy
- Schnog
- Schnook
- Schnuggems
- Scholastica
- Schooner
- Schputtie Butt-toosk
- Schrodinger
- Schrodinger's Cat (of physics fame)
- Schroeder
- Schuffalufagus
- Schuler
- Schultzie
- Schuyler
- Schwartz
- Schwarzkopf
- Schwazili
- Schweppes
- Scintilla
- Scissor
- Scissors
- Sco
- Scone
- Scoobie
- Scoobs
- Scooby
- Scooby Doobie Doo
- Scooby Doobies
- Scooby-Doo
- Scootacious P. Fruitwinkle (aka Scooty, aka Scooty Fruit)
- Scooter
- Scooter Loo
- Scooter Pie
- Scooter The Midnight Hooter
- Scooter Toot-toot Tat
- Scooter-Boodah
- Scorpanon
- Scorpio
- Scorpion
- Scotch
- Scotch & Soda
- Scott
- Scottie
- Scotty
- Scoundrel
- Scout
- Scrapper
- Scrappleton Pie
- Scrappy
- Scrappy Too
- Scrappy-Doo
- Scratch
- Scratchy
- Scratchy McFleaface III
- Scratchy-Patchy
- Scrawny
- Scrawny Cat
- Screamer
- Screaming Meme
- Screech
- Screwtop
- Scribbles
- Scrissie
- Scrooge
- Scruff
- Scruffy
- Scruge
- Scrumptious
- Scsi
- Scsi ("scuzzie")
- Scsi2
- Scsi2 ("scuzzie too")
- Scuba
- Scud
- Scudder
- Scully
- Scully-faced Butthead
- Scuma
- Scutter
- Scuzzface
- Scylla
- Sea Bisquit
- Sea Dog
- Seabone Sam
- Seabreeze
- Seairah
- Seal
- SeaLab 2021
- Seamus
- Sean
- Seanna
- Seanna, Goddess of Water
- Search And Destroy
- Seargent Tibbs (from 101 Dalmations)
- Seattle
- Sebastian
- Sebastian Napolean Bonaparte Bartholomew
- Sebastian Napolean Bonaparte Bartholomew MacGillikitty II
- Sebastian White Paws
- Sebatstion
- Sebby
- Sebbys
- Sedona Sage
- See Saw
- Seeger
- Sef (Egyption Mythology: loday)
- Sefton
- Sega
- Segun
- Seiko
- Seinfeld
- Seka
- Sekita
- Sekmet
- Sekmet (named after the Egyption lion-headed goddess)
- Selby
- Selena
- Selena (after the goddess Selene)
- Selene
- Selene Lilth Zildjian
- Selenium
- Selig
- Selina
- Selkie
- Selma
- Selmer
- Seltzer
- Semi
- Semik
- Seminole
- Senator Loomis P Nutley III
- Seneca
- Senior
- Senior Assistant Mouser
- Senior Kitty
- Senna
- Senneca
- Senorita
- Senorita Kitty
- Senorita Margarita
- Sensei
- Sephanie
- Sephanine
- Sepher
- Sepher-Do
- Sepher-Doodle
- Sephie
- Sephie-Sephie-Sefie
- Sephora
- Sephronia
- Sequoia
- Sera
- Serai
- Serai (aka Rennie, Renley, Rai, Dragon (a giant red tabby))
- Seraphim (Hebrew word for angels)
- Seren (for Serendipidity)
- Serena
- Serenade
- Serendipity
- Serengeti
- Serenity
- Serge
- Sergeant
- Sergei
- Serve
- Sesame
- Sesi
- Sessan
- Set
- Seth
- Setra (after the coach brand "Setra-Kässbohrer")
- Settete
- Seurat
- Seuss
- Seven
- Seventh Heaven
- Seventy Five
- Severus
- Seville
- Sevvie
- Seward
- Sexkitten
- Sexton
- Sexy Kelsey
- Seychelles
- Seymore (Our cat who likes to hide that we want to "see more" of)
- Seymour
- Sgt. Pepper
- Sha-Na-Na
- Sha-Sha
- Shaaz
- Shabou
- Shack
- Shada
- Shades of Grey
- Shadi
- Shadow
- Shadow "Houdini"
- Shadow Chat
- Shadow-Bear
- Shadowfax
- Shadowfoot
- Shadrach
- Shady
- Shaft
- Shaggy
- Shah
- Shahalie
- Shai (hebrew for "gift")
- Shaina
- Shajanapur
- Shaka Zulu
- Shakes
- Shakespeare
- Shakespurr
- Shakilah (Pygmy for "black female")
- Shakira
- Shalimar
- Shalklad
- Shalom
- Sham
- Shama
- Shaman
- Shammy
- Shamrock
- Shamrocka
- Shamu
- Shamus
- Shamus Blue
- Shana (Yiddish for "princess")
- Shandy
- Shane
- Shanghi
- Shangri-la
- Shani
- Shania
- Shannenay
- Shannon
- Shanti
- Shaq
- Shaquille O'Neil
- Shar
- Share
- Sharkey
- Sharky
- Sharni
- Sharp
- Shasha
- Shashi Kapoor (after the Indian actor)
- Shasta
- Shastri
- Shatzie
- Shaun
- Shawn
- Shawnee
- Shay
- Shayna
- Shaynabear
- Shaynala
- Shaynapet
- Shaynapie
- Shaynapoo
- Shaynapretzel
- Shaynapuddin'
- Shaynie
- Shaynmeister
- Shazbot
- Shazo
- Shazzam
- She-Devil
- She-she
- Sheba
- Sheba-Do
- Sheba-Maud
- Shebe-Debe
- Sheeber
- Sheena
- Sheer
- Sheera
- Sheeva
- Sheffield
- Shego (character in the "Kim Possible" cartoon)
- Shegwah
- Sheik
- Sheik Djobouti
- Sheila
- Shelby
- Sheldon
- Shelley
- Shelly
- Shelton
- Shenanigans
- Shepert
- Shepherd
- Sherbert
- Shere Khan
- Sheridan
- Sheriff
- Sheringham
- Sherlock
- Sherlock and Watson
- Sherlock Holmes
- Sherly
- Sherman
- Sherman Tank
- Sherry
- Sherwin
- Sherwood
- Shicalf
- Shiitake
- Shika
- Shikilah (Pygmy for "black female")
- Shiko (Japanese for "claw")
- Shiksa
- Shila
- Shilo
- Shiloh
- Shim Shim Shiree
- Shima
- Shimi
- Shimmer
- Shimmering Ice Puzzle
- Shimmy
- Shine
- Shingles
- Shingy
- Shining Star
- Shinka
- Shino (Japanese for "a long thin piece of bamboo")
- Shiny New Penny
- Shirah
- Shiraz
- Shirin (Persian for "Sweet")
- Shirley
- Shirley Temple
- Shish
- Shishka
- Shit
- Shitakii
- Shitty Kitty
- Shiva
- Shmatte (Yiddish for "rag", an old or ragged garment)
- Shminok
- Shmoo
- Shmoopie
- Shmoosy
- Shmuzie
- Shnapple
- Shnookums
- Sho-Shona
- Shoda
- Shodabear (Hebrew for "silly knight")
- Shoela
- Shoeless
- Shogun
- Shohornemar (Hebrew for "black tiger")
- Shoobbie
- Shoogar
- Shooter
- Short Cake
- Short Circuit
- Short Socks
- Shortcake
- Shortstop
- Shorttail
- Shorty
- Shosh
- Shoshony
- Shotgun
- Shotzie
- Shotzy
- Shout
- Shovel Head
- Showboat
- Showdy
- Showoff
- Shpookums
- Shrambles
- Shramsberg
- Shrapnel
- Shredder
- Shreen
- Shrek
- Shrimp
- Shuana
- Shuber
- Shubert
- Shuffin
- Shuggy
- Shukran
- Shunka Witco
- Shunkman
- Shut Up
- Shy
- Shy One
- Shy-Ann
- Shylo
- Shylock
- Shyvie
- Sia
- Siam
- Siamese
- Siamsa
- Siani
- Siati (pronounced C-A-T (Si-A-Ti))
- Sibyl
- Siciliano
- Sicily
- Sid
- Sid And Nancy
- Sid Vicious
- Sideways
- Sidewinder
- Sidmeister
- Sidney
- Sidney No Knees
- Sidonie
- Sidster
- Siegfried
- Sienna
- Siepie
- Siera
- Sierra
- Sierra Leone
- Sifka
- Sigma
- Sigmund
- Sigri (from the Greek Isle of the same name)
- Sigurd
- Siki
- Sikkim
- Silhouette
- Silicone
- Silk
- Silke
- Silken
- Silkenfire
- Silkers
- Silkwood
- Silkworth
- Silky
- Silky Beast
- Sillabub
- Silly
- Silly Maybelline The Acid Queen
- Silly Sidney
- Silva
- Silver
- Silver Fox
- Silver Mountain
- Silver Streak
- Silver Toes
- Silverspoon
- Silverstein
- Silvester
- Silvia
- Silvie
- Silvina
- Silvio (from the sitcom "The Sopranos")
- Sim-shin
- Sim-Silly-Sim
- Sima
- Simba
- Simba (from The Lion King)
- Simba Kie
- Simba Sue
- Simbad
- Simena
- Simeon
- Simkin
- Simon
- Simon Says
- Simon Sez
- Simone
- Simons
- Simpatico
- Simply Red
- Simpson
- Sin
- Sinatra
- Sinbad
- Sinbar
- Sinclair
- Sinder
- Sine
- Sing Lee A-Cha-Cha
- Singer
- Singh (Hindu for "lion")
- Sinister
- Sinker
- Sinoe
- Sinora
- Sinta (after the Indonesian mythical princess)
- Sir
- Sir Callaway
- Sir Ding Bat of Ashburn
- Sir Fatness
- Sir Higgenpoof
- Sir Lancelot
- Sir Little Bigfeets
- Sir Little Bigfoot
- Sir Max the Fearful
- Sir Meowington Pudger Cat The Third
- Sir Michael's Harley of Campton
- Sir Nicholas
- Sir Nickapoopalot
- Sir Poop-a-lot
- Sir Poops-A-Lot
- Sir Prance Alot
- Sir Purr-A-Lot
- Sir Purrs-a-lot
- Sir Raider
- Sir Sebastian
- Sir Seddrik
- Sir Simon Cinnamon
- Sir Stinkalot the 1st
- Sir Thomas Lipton
- Sir Tigger The Blue (after Tigger in Winnie the Pooh)
- Sir Weebit
- Sir Weeble Wobblybottom
- Sir Winston Whines-A-lot
- Sir Wyles of Ashencoat (a play on "Agincourt")
- Siren
- Sirius
- Sirus
- Sisco
- Siskel And Ebert
- Sisko
- Sissy
- Sister
- Sita
- Sitar
- Sitka
- Sitsa
- Sitting Bull
- Siva
- Six
- Six Toes
- Sixer
- Sixpence
- Sixty-Niner
- Sizi
- Sizzle
- Sjakie
- Sjimmie
- Sjors (Dutch version of George)
- Skank
- Skanky
- Skat
- Skattie (Afrikaans for "little treasure")
- Skatz
- Skedaddle
- Skeeder
- Skeet
- Skeeter
- Skeletor (character in the Masters of the Universe cartoon)
- Sketchy
- Skidder
- Skids
- Skinner
- Skip
- Skipper
- Skippy
- Skitszo
- Skittah
- Skitter
- Skittle
- Skittlehead
- Skittles
- Skitty
- SKL (Silk)
- Skookum
- Skor
- Skosh
- Skoshee
- Skoshi
- Skoshy
- Skrawny
- Skully
- Skunk
- Skunkers
- Skunky
- Sky
- Sky Hawk
- Skye
- Skyelar Cricket Sc'thyst
- Skyla
- Skyler
- Skymble
- Skyrocket
- Skyttles
- Skywalker
- Slammer
- Slartibartfast
- Slash
- Slash Brown
- Slasher
- Slate
- Slats
- Slax
- Sleek
- Sleepy
- Sleepy Cat
- Sleepy Eye
- Sleestack
- Slenderback Treecatimous
- Slicer
- Slick
- Slick Willie
- Slicker
- Slickers
- Slicks
- Slickster
- Slicky the Porch Panther
- Slider
- Slim
- Slim Jim
- Slinker
- Slinkerdoodle
- Slinkus.
- Slinky
- Slinky D.
- Slinky Malinky
- Slinky Pinky
- Slinx
- Slipknot
- Slippers
- Slippery
- Slither
- Slither Cat
- Slitzercoo
- Slobbash Butterball
- Slobbechops
- Slobber-Puss
- Slobbers
- Sloopy
- Sloppy
- Sloth
- Slugger
- Sluggo
- Slurp
- Slut Cat
- Sly
- Sly Boy
- Slykitty
- Slytherin
- Smack
- Small Man in a Catsuit
- Smartie
- Smarty
- Smash
- Smasher
- Smedly
- Smeghammer
- Smelly Cat
- Smidge
- Smidgen
- Smidgeons
- Smidget
- Smidgewidge
- Smiles
- Smiley
- Smiley Buttons
- Smirkin
- Smith
- Smith And Wesson
- Smither the Poop
- Smitty
- Smizza
- Smog
- Smok'n Sally
- Smoka
- Smoke
- Smoker
- Smokeshack
- Smokey
- Smokey Jo
- Smokey Joe
- Smokey Joe roach
- Smokey the Bandit
- Smokey/Smokie
- Smokie
- Smoko
- Smoky
- Smoky Baby
- Smoky Cat
- Smoky One-Eye
- Smoochee
- Smoocher
- Smoochers
- Smoochie
- Smoochini
- Smoogee
- Smores
- Smuckers
- Smudge
- Smudgeface
- Smudges
- Smulan
- Smurfette
- Smushy
- Smutley
- Snack
- Snaggle
- Snaggletooth
- Snags
- Snaker
- Snakers
- Snap
- Snapes
- Snapper
- Snappy
- Snapshot
- Snarl
- Snarley
- Snazzy
- Sneakers
- Sneaky
- Sneaky Joe
- Sneezy
- Snicker
- Snicker Doddles
- Snicker Doodles
- Snicker-Doodle
- Snickers
- Snickle Fritz
- SnickleFritz Schnurren (German for 'Purry Rascal')
- Sniff
- Sniffer
- Sniffles
- Snifter
- Sniper
- Snippet
- Snit
- Snitch
- Sno-Pea
- Snoball
- Snocap
- Snodgrass
- Snoez
- Snoogie
- Snoogin' Kitty
- Snoogybear
- Snook
- Snooker
- Snookie
- Snookles
- Snooks
- Snookster
- Snookums
- Snooky
- Snooky Wooky
- Snoop
- Snooper
- Snoops
- Snoopy
- Snooty
- Snorkler
- Snorky
- Snorky Kitty
- Snorri
- Snorter
- SnotBall
- Snotje
- Snots
- Snout
- Snow
- Snow Princess
- Snow White
- Snow-girl
- Snowball
- Snowberry
- Snowbird
- Snowbunny
- Snowcat
- Snowfall
- Snowfire
- Snowflake
- Snowie
- Snowman
- Snowmist
- Snowshoe
- Snowshoes
- Snowstorm
- Snowy
- Snuff
- Snuffelufugus
- Snuffles
- Snuffy
- Snug
- Snugganuts
- Snugglebunny
- Snugglepuss
- Snuggles
- Snuggles Or Snuggle-Puss
- Snöggur
- So Me
- Sobby
- Sock 'em Boppers
- Sockie Boy
- Socks
- Socrates
- Socs
- Soda
- Sodom And Gomorrah
- Sofa
- Sofia
- Sofia Luisa Princess Dirty Feet
- Sofka (Russian for "wise")
- Soft
- Sohare
- Sok
- Solan
- Solar
- Soleil
- Solid Snake (from the video game "Metal Gear Solid")
- Solie
- Soliloquy
- Solitaire
- Sollie
- Solo
- Soloman
- Solomon
- Solsjakeer
- Solskjaer (pronounced "Soul shaker")
- Solstice
- Solt
- Soluna
- Sombra (Spanish for "shadow")
- Some Sissy Kitty
- SOMEone!
- Somerset
- Sonar
- Sonata
- Song
- Sonia
- Sonic
- Sonja
- Sonnet
- Sonny
- Sonny And Cher
- Sonny Bono
- Sonoma
- Sonora
- Sonta
- Sony
- Sonya
- Soo-Soou
- Sook
- Sooner
- Soosh
- Soot5
- Sooti
- Sootica
- Sootikin
- Sooty
- Sooty Smudge
- Sopher
- Sophia
- Sophie
- Sophie/Sophia
- Soran
- Sorassa
- Sorbet
- Sorcerer Or Sorceress
- Sorceror
- Sorcha
- Sorcorn
- Sorry
- Sorsha Marie
- Sorsha Softpaw
- Sosha Dee
- Soueee
- Souki
- Soup
- Sour Soup
- Sourdough
- Southern Comfort
- Southern Lady
- Southpaw
- Souverain
- Sox
- Sox/Soxy
- Soxy
- Soybay
- Space Cadet
- Spacey
- Spackman
- Spade
- Spades
- Spaette
- Spaetzle.
- Spaghetti
- Spago
- Spam
- Spam Wucket
- Spamela
- Spandex
- Spanky
- Spare
- Spare Cat
- Spare Parts
- Spare Tire
- Sparecat
- Sparkey
- Sparkey Or Sparkle
- Sparkle
- Sparkles
- Sparklett
- Sparkplug
- Sparky
- Sparrow
- Spartacus
- Sparti
- Spatches
- Spats
- Spatz
- Spaz
- Spazz
- Spazzster
- Spazzy
- Speagle
- Special
- Special K (Special Kat)
- Special Kay
- Speck
- Speckie
- Speckle Butt
- Speckles
- Specks
- Specs
- Specter
- Spectra
- Sped (Special Ed)
- Speed
- Speed Bump
- Speedie
- Speedy
- Speedy Gonzales
- Speedy Gonzalez
- Spellbinder
- Spencer
- Spencer The Power Meower
- Spenser
- Sphinx
- Spiccoli
- Spice
- Spice 'O Life
- Spice Girl
- Spice Kitty
- Spicecake
- Spicelab
- Spicy
- Spider
- Spider Kitty
- Spiderman
- Spidey
- Spiff
- Spiffy
- Spiggy (One of Gods cats)
- Spigot
- Spike
- Spikey
- Spinach
- Spincter Boy
- Spinet
- Spinner
- Spinoza
- Spirit
- Spitfire
- Spitsey
- Spitz (from the video game "Wario Ware")
- Splash
- Splasher
- Splat
- Splat (reference to the Unix * symbol)
- Spliff
- Splinter
- Splish (and Splash)
- Splodge
- Splotch
- Splotches
- Spluge
- Spock
- Spokane
- Sponge Bob Square Pants
- Spongebob
- Spoofy
- Spooge
- Spook
- Spookers
- Spookey
- Spookie
- Spookins
- Spookster
- Spookums
- Spooky
- Sport
- Sporty
- Spot (after Data's cat on "Star Trek: The Next Generation")
- Spotta
- Spotty
- Spotzilla
- Spreana
- Spreckels
- Spreckles
- Spring
- Springer
- Sprinkale
- Sprinkales
- Sprinkles
- Sprite
- Spritzer
- Sprocket
- Sprout
- Spud
- Spudnik (like Spud, but with a "Russian punny twist")
- Spuds
- Spudster
- Spumanti
- Spumoni
- Spunkey
- Spunki
- Spunki Munki
- Spunkie
- Spunkie Girl
- Spunky
- Spur
- Sputnik
- Sputz
- Sputza
- Sputza Kitty
- Spy
- Spy Kitty
- Spyder
- Spyro
- Squat
- Squeak
- Squeakbox
- Squeaker
- Squeaker Doodle
- Squeakers
- Squeakie
- Squeaks of the Long Whiskers
- Squeaky
- Squeaky Cat
- Squeaky LaRue
- Squeek
- Squeekie
- Squeeks
- Squeeky
- Squeeler
- Squeezy
- Squib
- Squibbly
- Squibbly Wibbly
- Squid
- Squidge
- Squidward
- Squierl Meat
- Squiffel
- Squiggy
- Squinklemeyer
- Squinklemeyer Jones
- Squinky
- Squir-Cat
- Squirm
- Squirrel
- Squirt
- Squirt Kitty
- Squirts
- Squishy
- Squit
- Sqwert
- Srinath
- St. Nicholas
- Stacey
- Stache
- Stackhouse
- Stacy
- Stage
- Stage One
- Stain
- Stalone
- Stan
- Stanislav
- Stanley
- Stanley Mitchell
- Stanley Tiggeywinkles
- Star
- Star Wars
- Starbuck
- Starburst
- Stardust Or Starlight
- Stargazer
- Stark
- Starkey
- Starla
- Starlet
- Starlight
- Starr
- Starr-O'-The-West
- Starry
- Starry Eyes
- Stars (and Stripes)
- Starsky
- Starstruck
- Stash
- Stasha
- Static
- Stauby
- Stavanger
- Stay Put White Kitty
- Stealth
- Steamer
- Steave
- Stefany
- Stefean
- Steinbeck
- Steinway
- Stella
- Stellar
- Stenchman
- Stennis
- Stephanie
- Stephen
- Sterling
- Sterling Price (after the cat in John Wayne's movie "True Grit")
- Sterling Silver
- Stetson
- Steve
- Steve "I love to eat Papa John's Pizza"
- Steve O
- Steven
- Stevenstien
- Steverino
- Stevers
- Steverspoo
- Stevester
- Stevie
- Stevie Ray
- Stevie Ray Vaughn
- Stevie Van
- Stevie Wonder
- Stevie Wondercat
- Steviekins
- Stew
- Stich
- Stick
- Sticky
- Stiffy
- Stigr
- Stillwell
- Stiltcat
- Stimpson J. Cat
- Stimpy
- Sting
- Stingray
- Stink
- Stinker
- Stinker Or Stinker Belle
- Stinker Pinker
- Stinkey Pukey
- Stinktapoo
- Stinkus Bodinkus
- Stinky
- Stinkybutt
- Stippy
- Stir Fry
- Stirling Mossacino The First
- Stitch
- Stitch (after the character in the Lilo And Stitch cartoon)
- Stitchery
- Stitches
- Stolen
- Stoli
- Stoltzpus (from the Pennsylvania Dutch name "Stoltzfus")
- Stoner
- Stonewall
- Stoney
- Stoodle-Ann
- Stop That!
- Stop-That-You-Little-Bastard
- Stopper
- Storm
- Storm Cloud
- Storm Or Stormy
- Storm Shadow
- Stormdragon
- Stormie
- Stormy
- Stormy Gail
- Stormy Teide
- Storm`ee
- Stout
- Stowaway
- Stranger
- Stranger Danger
- Stranger Ranger
- Stranger Than Most
- Stratford
- Strawberry
- Stray
- Streaker
- Street Walker
- Strega
- Strepe
- Strepe (Afrikaans for "Stripes")
- Stress
- Stress Reliever
- Stretch
- Stribe
- Strider
- Strike
- Striker
- String
- Stripe
- Striper
- Stripes
- Stripey
- Stripey Lady
- Stripeypants
- Stripington
- Stroker (brother of McGurk - named after a '50s hot rod magazine cartoon)
- Stroodles
- Strudel
- Strutter
- Stryper (named after the Christian rock group)
- Stuart
- Stuart Chester
- Stuart Chesters
- Stuart Little
- Stubb
- Stubbles
- Stubborn
- Stubbs
- Stubby
- Stubman
- Stud
- Studebaker
- Studley
- Studley J. Schackleford
- Studmuffin
- Stump
- Stumpy
- Stumpy Joe
- Stupid
- Stupid Cat
- Stupid Kat
- Stymie
- Styx (from Greek mythology, the river that formed the boundary between earth and the underworld)
- Sublime
- Succotash
- Sucky
- SuddenLee
- Sudi (Egyptian for "Lucky")
- Sue
- Sue Ellen Mewing
- Suede
- Sugar
- Sugar And Spice
- Sugar Bear
- Sugar Magnolia
- Sugar Ray
- Sugar'n Spice
- Sugar-Plum
- Sugarbabe
- Sugarbaby
- Sugarbaker
- Sugarbear
- Sugarbob Funkybunch
- Sugarlumpskittyjr
- Sugarpine
- Sugarplum
- Sugarpuss
- Sugie
- Sugie Bear
- Sugus
- Suibne
- Suitcase
- Suk
- Sukanta
- Sukhothai (Thai for "the dawn of happiness")
- Suki
- Suki Aki
- Sukiyaki
- Sula (Eskimo for "rising sun")
- Sulayman
- Sulfur
- Sullivan
- Sully
- Sultan
- Sultana
- Sulu
- Sumatra
- Sumi
- Summer
- Summer Lovin
- Summer Sol
- Sumo
- Sun
- Sun Ra
- Sun Tzu Liao Klein
- Sun-King
- Sun-Knife
- Sundae
- Sundance
- Sundance Kit
- Sundance Sunny Delight
- Sunday
- Sundown
- Sunflower
- Suni
- Sunkiss
- Sunkist
- Sunni
- Sunnie
- Sunny
- Sunnyboy
- Sunnybrook
- Sunrise
- Sunset
- Sunset Adria
- Sunshine
- Sunshine Kitty
- Super
- Super French
- Super Kitty
- Supercalafragelistic
- Supercat
- SuperGirl
- Superpuss
- Supertramp
- Surinai
- Surplus
- Survivor
- Susan
- Susanna
- Sushi
- Susi
- Susie
- Susie Creamcheese
- Susie Sex Change
- Suske
- Suss
- Sussudio
- Sussuro (Spanisch for "purr")
- Sussy
- Susu
- Susu (Malay for "milk")
- Suzanka
- Suze
- Suzette
- Suzi
- Suzie
- Suzie Sweetheart
- Suzie-poo
- Suzy
- Suzy Q
- SV
- Svede
- Svedish
- Sven
- Svenn
- Sveta
- Svetlana
- Swami
- Swampy
- Swan
- Swayze
- Sweathog
- Swede
- Swedish
- Swedish Par-Toodles
- Swedish Pie
- Swedish Pie Tart
- Swee-Pea
- Swee-Pee
- Swee-Swee
- Sweeny
- Sweep
- Sweet
- Sweet Annie
- Sweet Baby Kitty
- Sweet Cheeks
- Sweet Feet
- Sweet Fluffums
- Sweet Girl
- Sweet Ness
- Sweet Pea
- Sweet Pee
- Sweet Tart
- Sweet Will
- Sweetcakes
- SweetFeet
- Sweetheart
- Sweetie
- Sweetie Bear
- Sweetie Kitty
- Sweetie Pie
- Sweetie-Cakes
- Sweetie-Heart
- Sweetiekins
- Sweetikins
- Sweeting
- Sweetness
- Sweetpea
- Sweets
- Sweetums
- Swimmer Girl
- Swiper
- Swiss
- Swizzle
- Swizzle Stix
- Swoozie
- Sy
- Sybil
- Sycko
- Sydney
- Sydni
- Syiah
- Syian
- Sylmony
- Sylvester
- Sylvester Francis
- Sylvia
- Sylvie
- Sylvin
- Symba
- Symeon
- Symon
- Sympathy
- Symphony
- Synda
- Syndey Renee
- Syndi
- Syndrome (after the character in the movie "The Incredibles")
- Synergy
- Syntax
- Syracuse