| William Springer | William Springsteen | William Sproul |
| William Spry | William Squire Kenyon | William St John Brodrick, 1. Earl of Midleton |
| William St. John Brodrick, 1. Earl of Midleton | William St. John Forman | William St. Onge |
| William Stadie | William Stafford | William Stafford († 1556) |
| William Stafford (Dichter) | William Stainton Moses | William Stamer |
| William Stanbery | William Standish Knowles | William Stanier |
| William Stanley | William Stanley (Erfinder) | William Stanley (Ritter) |
| William Stanley Baker | William Stanley Braithwaite | William Stanley Haseltine |
| William Stanley Jevons | William Stanley Mazeroski | William Stanley Merwin |
| William Stanley Vann | William Stanley, 3. Baron Monteagle | William Stanley, 6. Earl of Derby |
| William Stanton | William Stapley | William Starke Rosecrans |
| William Starling Burgess | William Starling Sullivant | William Starmer |
| William Starr Miller | William Starr Miller I. | William States Lee |
| William Staveley | William Stedman | William Steele |
| William Steele Holman | William Steeves | William Stefanov |
| William Steffen | William Steig | William Stein |
| William Steinberg | William Steinitz | William Steinkamp |
| William Steinkraus | William Steinmetz | William Steinway |
| William Stenger | William Stephani | William Stephen Morgan |
| William Stephen Skylstad | William Stephens | William Stephens (Politiker, 1671) |
| William Stephens (Politiker, 1859) | William Stephens Smith | William Stephenson |
| William Stephenson (Spion) | William Sterling Cole | William Sterling Parsons |
| William Sterling Youngman | William Stern | William Sterndale Bennett |
| William Sterrett Ramsey | William Stevens Fielding | William Stevens House |
| William Stevenson | William Stevenson (Leichtathlet) | William Stevenson Hoyte |
| William Stevenson Meyer | William Stewart | William Stewart (Kartograf) |
| William Stewart (Politiker, 1810) | William Stewart Alexander | William Stewart Duke-Elder |
| William Stewart Halsted | William Stewart Halstedt | William Stewart MacGeorge |
| William Stewart Mitchell d'Urban | William Stewart Mitchell D'Urban | William Stewart Mitchell D’Urban |
| William Stewart Mitchell d’Urban | William Stewart Roddie | William Stewart Ross |
| William Stickney | William Stickney (Golfspieler) | William Stigler |
| William Stiles Bennet | William Still | William Still (Bürgerrechtler) |
| William Stimpson | William Stirling | William Stirling-Hamilton |
| William Stirling-Hamilton, 10. Baronet | William Stirling-Maxwell | William Stokes |
| William Stokoe | William Stone | William Stone (Gouverneur) |
| William Stone (Politiker) | William Stonor | William Storrs Cole |
| William Story | William Stott | William Stoughton |
| William Stoughton (Richter) | William Stout | William Stowe |
| William Stradling | William Strang | William Strang (Fußballspieler) |
| William Strang (Künstler) | William Strang, 1. Baron Strang | William Stratton |
| William Straube | William Street Historic District | William Strickland |
| William Strickland (Architekt) | William Strong | William Strong (Jurist) |
| William Strong (Politiker) | William Strong House | William Strutt |
| William Stuart | William Stuart (Erzbischof) | William Stuart (Marineoffizier) |
| William Stuart (Politiker, 1798) | William Stuart (Politiker, 1825) | William Stuart Long |
| William Stuart McKerrow | William Stuart Symington | William Stuart-Houston |
| William Stubbs | William Studeman | William Stuhr |
| William Stukeley | William Sturgeon | William Sturgis Bigelow |
| William Sturgiss Lind | William Sturrock Maxwell | William Styles |
| William Styron | William Sublette | William Suermondt |
| William Suff | William Suhaib Webb | William Suida |
| William Sullivan | William Sullivant | William Sulzer |
| William Summer Johnson | William Summers | William Sunsing |
| William Sutherland | William Sutherland (Physiker) | William Sutherland (Politiker) |
| William Sutherland Dun | William Sutherland Maxwell | William Sutherland, 2. Earl of Sutherland |
| William Sutherland, 3. Earl of Sutherland | William Sutton | William Sutton Moore |
| William Swainson | William Swan | William Swan (Diplomat) |
| William Swan Garvin | William Swan, 1. Baronet | William Sweet |
| William Swinton | William Sydeman | William Sydney Porter |
| William Sydney Wilson | William Syer Bristowe | William Sykes |
| William Sykes (Fußballspieler) | William Sylvester | William Sylvester Harley |
| William Sylvester Silkworth | William Sylvester Taylor | William Symington |
| William Szathmary | William Szekely | William T. Anderson |
| William T. Barry | William T. Bielby | William T. Brigham |
| William T. Brooks | William T. Byrne | William T. C. Wardwell |
| William T. Cahill | William T. Carroll | William T. Cartwright |
| William T. Cobb | William T. Coleman Jr. | William T. Cooper |
| William T. Cope | William T. Cosgrave | William T. Councilman |
| William T. Crawford | William T. Davies | William T. Fitzgerald |
| William T. Glidden | William T. Golden | William T. Gowers |
| William T. Granahan | William T. H. Brooks | William T. Haines |
| William T. Haskell | William T. Hornaday | William T. Jeter |
| William T. Lawrence | William T. Minor | William T. Murphy |
| William T. Mustard | William T. Nuckolls | William T. Pheiffer |
| William T. Price | William T. R. Fox | William T. Redmond |
| William T. Riker | William T. Schulte | William T. Sedgwick |
| William T. Sexton | William T. Sherman | William T. Stead |
| William T. Stearn | William T. Terwilliger & Company | William T. Trotter |
| William T. Tutte | William T. Tyndall | William T. Vetterling |
| William T. Vollmann | William T. Watson | William T. White |
| William T. Zenor | William T.G. Morton | William Tackaert |
| William Taft | William Tailer | William Takaku |
| William Talbert | William Talbot | William Talbot, 1. Earl Talbot |
| William Talbot, Earl Talbot | William Talley House | William Talman |
| William Talman (Schauspieler) | William Tandy Senter | William Tannen |
| William Tannen (Regisseur) | William Tannen (Schauspieler) | William Tanui |
| William Tapley Bennett Jr. | William Tapley Bennett junior | William Tatem Tilden |
| William Taubman | William Taylor | William Taylor (Boxer) |
| William Taylor (Politiker, 1788) | William Taylor (Politiker, 1791) | William Taylor (Schriftsteller, 1765) |
| William Taylor Barry | William Taylor Garnett | William Taylor Glidden |
| William Taylor House | William Taylor Sullivan Barry | William Taylor Thornton |
| William Taylor Zenor | William Taylour Thomson | William Tecumsah Avery |
| William Tecumseh Sherman | William Tecumseh Sherman Fitch | William Temple |
| William Temple (Erzbischof) | William Temple (Politiker) | William Temple Franklin |
| William Temple Hornaday | William Temple, 1. Baronet | William Templeman |
| William Tenn | William Tennant | William Teopilus Jones |
| William Tepper | William Teron | William Terrell |
| William Terrence Hennessey | William Terrence McGrattan | William Terry |
| William Terry (Politiker) | William Terry Jackson | William Thackeray |
| William Thad Cochran | William Thaddeus Coleman | William Thaddeus Coleman, Jr. |
