- Sandford
- Sanny
- Saxton
- Scottie
- Scotty
- Seabrook
- Seaman
- Searle
- Sebert
- Selden
- Sedgwick
- Sefton
- Seibert
- Sewall
- Seward
- Sexton
- Seymore
- Shaw
- Sheldon
- Shelton
- Shep
- Sherburne
- Sherman
- Shepard
- Shepherd
- Sheppard
- Sheewyn
- Skipp
- Sid
- Simmons
- Slade
- Slater
- Slayde
- Slim
- Smith
- Smitty
- Spaulding
- Speed
- Stan
- Standford
- Standish
- Stanwood
- Stanley
- Stanton
- Stedman
- Steed
- Steel
- Steele
- Sterling
- Steve
- Steven
- Stewart
- Stiles
- Stockton
- Stoddard
- Stone
- Stoney
- Stratford
- Stuart
- Styles
- Sully
- Sutton
- Swayne
- Swinton