- Schwilling
- Schwingel
- Schwotzer
- Schwulst
- Sciabica
- Scott
- Scovill
- Scribner
- Scripter
- Scrivens
- Scruton
- Scullin
- Seal
- Seaman
- Seamen
- Searing
- Searle
- Searles
- Searls
- Sears
- Seavens
- Seaver
- Sebastian
- Sebold
- Secord
- Sedgwick
- Seeger
- Seekins
- Seeley
- Seely
- Seerly
- Seever
- Segal
- Segar
- Seidel
- Seipel
- Seitz
- Seivers
- Selear
- Selk
- Selleck
- Selley
- Selman
- Selmser
- Semple
- Sena
- Senear
- Senter
- Senton
- Serd
- Sergeant
- Server
- Service
- Sessions
- Seufert
- Severson
- Severtson
- Severy
- Sevy
- Sewall
- Seward
- Sewell
- Sexton
- Seymore
- Seymour
- Shackelford
- Shackleford
- Shaddick
- Shaddix
- Shadduck
- Shafer
- Shaffer
- Shagie
- Shake
- Shamp
- Shanahan
- Shangraw
- Shank
- Shannon
- Shapiro
- Shapland
- Shapley
- Sharon
- Sharp
- Sharpe
- Shattuck
- Shaubach
- Shaw
- Shay
- Shea