Here are a whole load of great names for cats all of which begin with the letter S.
| Saba | Seamus | Snuggles |
| Sabine | Serenity | Socrates |
| Sabre | Sergio | Solomon |
| Sachin | Seuss | Sonny |
| Sadie | Shadow | Sooty |
| Saffron | Shadowfoot | Sox |
| Sagwa | Shaggy | Sparticus |
| Sahara | Shaka | Spats |
| Saki | Shamrock | Speedy |
| Sally | Sheba | Spencer |
| Salsa | Sherlock | Spicy |
| Salt | Shoes | Spooky |
| Salty | Short Tail | Spot |
| Sam | Shorty | Sprinkle |
| Samantha | Siam | Sprinkles |
| Samba | Sid Vicious | Squeaky |
| Sammie | Silhouette | Squiggles |
| Sammy | Simba | Squishy |
| Samson | Simbah | Stewie |
| Sandy | Sissy | Stickers |
| Santa Claws | Skittles | Stinky |
| Sapphire | Sky | Striker |
| Sasha | Slash | Stripes |
| Sassy | Slasher | Stripey |
| Scamp | Sleepy | Stumpy |
| Scampi | Sly | Sugar Cube |
| Scarlet | Smarty | Sugar Plum |
| Scary Mary | Smokey | Sugarpuss |
| Schultz | Smooch | Suki |
| Scooby | Smoochie | Sumo |
| Scottie | Smudge | Sunshine |
| Scotty | Snoop | Super Cat |
| Scrappy | Snow White | Sweet William |
| Scratch | Snowcat | Sweetie |
| Screech | Snowdrop | Sweetie Pie |
| Scruffy | Snowflake | Sylvester |