S
- Bret Saberhagen
- Donnie Sadler
- Bob Sadowski
- Ed Sadowski
- Takashi Saito
- Jarrod Saltalamacchia
- Joe Sambito
- Angel Sánchez
- Freddy Sánchez
- Rey Sánchez
- Ken Sanders
- Marino Santana
- José Santiago
- Ángel Santos
- Tom Satriano
- Scott Sauerbeck
- Dave Sax
- Bill Sayles
- Ray Scarborough
- Russ Scarritt
- Wally Schang
- Charley Schanz
- Bob Scherbarth
- Chuck Schilling
- Curt Schilling
- Calvin Schiraldi
- Rudy Schlesinger
- Biff Schlitzer
- George Schmees
- Dave Schmidt
- Johnny Schmitz
- Scott Schoeneweis
- Dick Schofield
- Pete Schourek
- Ossee Schreckengost
- Al Schroll
- Don Schwall
- Everett Scott
- George Scott
- Marco Scutaro
- Rudy Seánez
- Tom Seaver
- Bob Seeds
- Diego Seguí
- Phil Seibel
- Kip Selbach
- Bill Selby
- Aaron Sele
- Jeff Sellers
- Merle Settlemire
- Wally Shaner
- Howie Shanks
- Red Shannon
- Al Shaw
- John Shea
- Merv Shea
- Danny Sheaffer
- Ryan Shealy
- Dave Shean
- Andy Sheets
- Rollie Sheldon
- Keith Shepherd
- Neill Sheridan
- Ben Shields
- Jason Shiell
- Strick Shofner
- Kelly Shoppach
- Ernie Shore
- Bill Short
- Chick Shorten
- Brian Shouse
- Terry Shumpert
- Norm Siebern
- Sonny Siebert
- Al Simmons
- Pat Simmons
- Dave Sisler
- Ted Sizemore
- Camp Skinner
- Craig Skok
- Jack Slattery
- Steve Slayton
- Heathcliff Slocumb
- Charlie Small
- Al Smith
- Aleck Smith
- Bob G. Smith
- Bob W. Smith
- Charlie Smith
- Chris Smith
- Dan Smith
- Doug Smith
- Eddie Smith
- Elmer Smith
- Frank Smith
- George Smith (2B)
- George Smith (P)
- John Smith
- Lee Smith
- Paddy Smith
- Pete Smith
- Reggie Smith
- Zane Smith
- Mike Smithson
- John Smoltz
- Wally Snell
- Chris Snopek
- J. T. Snow
- Earl Snyder
- Kyle Snyder
- Moose Solters
- Rudy Sommers
- Allen Sothoron
- Bill Spanswick
- Tully Sparks
- Tris Speaker
- Nate Spears
- Stan Spence
- Tubby Spencer
- Andy Spognardi
- Ed Sprague
- Jack Spring
- Bobby Sprowl
- Chick Stahl
- Jake Stahl
- Matt Stairs
- Tracy Stallard
- Jerry Standaert
- Lee Stange
- Rob Stanifer
- Bob Stanley
- Mike Stanley
- Jack Stansbury
- Mike Stanton
- Dave Stapleton
- Jigger Statz
- Elmer Steele
- Ben Steiner
- Red Steiner
- Mike Stenhouse
- Gene Stephens
- Vern Stephens
- Jerry Stephenson
- Adam Stern
- Sammy Stewart
- Dick Stigman
- Carl Stimson
- Chuck Stobbs
- Al Stokes
- Dean Stone
- George Stone
- Jeff Stone
- Howie Storie
- Lou Stringer
- Amos Strunk
- Dick Stuart
- George Stumpf
- Tom Sturdivant
- Chris Stynes
- Jim Suchecki
- Denny Sullivan
- Frank Sullivan
- Haywood Sullivan
- Marc Sullivan
- Carl Sumner
- Jeff Suppan
- George Susce
- Drew Sutton
- Bill Swanson
- Bill Sweeney
- Ryan Sweeney
- Greg Swindell
- Len Swormstedt
Read more about this topic: Boston Red Sox All-time Roster