S
- "Sara", "Sorry Sara", "Sister Sara", "Stripe-Stack Sara", or "Sara Maru" - USS Saratoga
- "Saggy Pants" — HMCS Saguenay
- "San Francisco's Own" — USS Carl Vinson
- "Seapuppy" — USS Seawolf
- "Shall Not Perish" - USS Abraham Lincoln
- "Shiny Sheff" - HMS Sheffield
- "Shitty Kitty" — USS Kitty Hawk
- "Showboat" - USS North Carolina
- "Slack Jack" - USS John F. Kennedy
- "Smiley" — USS Jimmy Carter (SSN-23) - nickname of former US President Carter
- "The Smoke" — HMS London
- "Sodak" - USS South Dakota
- "USS Spring-a-leak" - USS Springfield (CLG-7) - for her alleged degraded engineering condition near the completion of her final deployment as Sixth Fleet Flagship (over 3 years)
- "Spurious" — HMS Furious
- "Starship Vinson" — USS Carl Vinson
- "Steel Cat" — HMAS Brisbane
- "Stinkin Lincoln" — USS Abraham Lincoln
- "Suckin' 60 From Dixie", or "Suckin' Sara" - USS Saratoga
- "Surunmaa" - Finnish navy corvette Turunmaa. Literally "land of sorrow".
- "Swayback Maru" - USS Salt Lake City
Read more about this topic: List Of Warships By Nickname