| William Chilton | William Ching | William Chinyama |
| William Chittick | William Chomsky | William Christian |
| William Christian Bouck | William Christian Heinrich Martensen | William Christian Krumbein |
| William Christie | William Christie (Astronom) | William Christie Gosse |
| William Christoffer Handy | William Christoph Zeise | William Christopher |
| William Christopher Atkinson | William Christopher Handy | William Christopher Stadie |
| William Christopher Zeise | William Chrystie Miller | William Church |
| William Church (Erfinder) | William Churchill de Mille | William Churchill deMille |
| William Claflin | William Claiborne | William Claiborne Dunlap |
| William Clarence Alves | William Clarence Eckstein | William Clarence Stokoe |
| William Clark | William Clark (Begriffsklärung) | William Clark (Bogenschütze) |
| William Clark (Politiker, 1774) | William Clark Brinkley | William Clark Cowie |
| William Clark Falkner | William Clark Gable | William Clark House |
| William Clark junior | William Clark Quantrill | William Clark Styron |
| William Clark, Baron Clark of Kempston | William Clarke | William Clarke (Musiker) |
| William Clarke (Politiker) | William Clarke (Radsportler) | William Clarke Cowie |
| William Clarke Quantrill | William Claude Dukenfield | William Claude Fields |
| William Claude McMahon | William Claude Rains | William Claxton |
| William Claxton (Regisseur) | William Clay Cole | William Clay Ford |
| William Clay Ford Junior | William Clay Ford senior | William Clay Ford Senior |
| William Clayton | William Clayton Anderson | William Cleary |
| William Cleaver Francis Robinson | William Cleite Boaventura | William Clem |
| William Clemens | William Cliff | William Clifford |
| William Clifford Munro Scott | William Clifford Munroe Scott | William Clifford Newman |
| William Clift | William Clifton Morris | William Clingan |
| William Clinton | William Clinton Olson | William Clive Bridgeman, 1. Viscount Bridgeman |
| William Clothier | William Clyburn Jr. | William Clyde Elliott |
| William Clyde Elliott II | William Clyde Hitchcock | William Coales |
| William Cobb | William Cobbett | William Coblentz |
| William Cochran | William Cochran (Sänger) | William Cochran (Schlagzeuger) |
| William Cochrane | William Cochrane, 1. Earl of Dundonald | William Cockayne |
| William Cockburn | William Cocke | William Cockerill |
| William Cockerill, Junior | William Cockerill, Senior | William Coddington |
| William Cody | William Cogswell | William Cohen |
| William Cohn | William Cohn (Kunsthistoriker) | William Cohn (Politiker) |
| William Cohn (Sprecher) | William Colby | William Cole |
| William Coleman | William Coleman Anderson | William Colenso |
| William Colepaugh | William Coley | William Colgate |
| William Collazo | William Collier junior | William Collins |
| William Collins & Sons | William Collins (Dichter) | William Collins (Maler) |
| William Collins (Politiker) | William Collins House | William Collins Whitney |
| William Collum | William Colvin | William Combe |
| William Compton | William Compton (Begriffsklärung) | William Compton, 1. Earl of Northampton |
| William Comstock | William Comyn | William Comyn (Bischof) |
| William Comyn, Earl of Buchan | William Conant Church | William Condon |
| William Condon (Pirat) | William Congreve | William Congreve (Autor) |
| William Congreve (Erfinder) | William Conklin | William Conley |
| William Connell | William Connolley | William Connolly |
| William Connor | William Connor (Pastor) | William Connor Wright |
| William Conrad | William Conrad Abhau | William Constantine Culbertson |
| William Control | William Conway | William Conway (Erzbischof) |
| William Conybeare | William Conyers | William Conyers Herring |
| William Conyers of Hornby | William Conyers, 1. Baron Conyers | William Conyngham Greene |
| William Cook | William Cook (Mathematiker) | William Cook House |
| William Cooke | William Cooke (Politiker, um 1537) | William Cookworthy |
| William Coolidge | William Cooper | William Cooper (Bürgerrechtler) |
| William Cooper (Richter) | William Cooper (Segler) | William Cooper Nell |
| William Copeland Borlase | William Copeland Trimble | William Copley |
| William Corbett | William Corbett (Komponist) | William Corbett (Politiker) |
| William Corbin | William Corgan | William Corin |
| William Corkine | William Cornelius Van Horne | William Cornwallis |
| William Cornwallis Harris | William Cornysh | William Cosby |
| William Cosentini | William Cosgrove | William Cost Johnson |
| William Costello | William Cotter Maybury | William Cotton |
| William Cotton (Bankier) | William Cotton (Erfinder) | William Cottrell |
| William Cottrell (Drehbuchautor) | William Cottrell (Physiker) | William Cottrill |
| William Cotts, 1. Baronet | William Councilman | William Count Basie |
| William Couper | William Courtenay | William Courtney |
| William Courtright | William Cowan | William Cowher |
| William Cowley | William Cowper | William Cowper (Dichter) |
| William Cowper (Mediziner) | William Cowper Smith | William Cowper, 1. Earl Cowper |
| William Cowper-Temple, 1. Baron Mount Temple | William Cowsill | William Cox |
| William Cox (Gouverneur) | William Cox (Leichtathlet) | William Cox (Pionier) |
| William Cox Ellis | William Cox Redfield | William Coxe |
| William Coxe junior | William Coyle | William Coyne |
| William Crabtree | William Craig | William Craig (Logiker) |
| William Craig Smith | William Craighill | William Craigie |
| William Craik | William Cramp & Sons | William Cramp and Sons |
| William Cranch Bond | William Crane Carl | William Craner |
| William Crapo Durant | William Crawford | William Crawford (Admiral) |
| William Crawford (Offizier) | William Crawford (Politiker) | William Crawford Dunlap |
| William Crawford Gorgas | William Crawford Sherrod | William Crawford Williamson |
| William Crawley-Boevey | William Crean | William Creek |
| William Creighton | William Criss | William Croft |
| William Croft (Linguist) | William Cronjager | William Cronk |
| William Cronon | William Crooke | William Crookes |
| William Croone | William Cropper | William Crosby |
| William Crosby Dawson | William Crosson Feazel | William Crotch |
| William Crouch | William Crow | William Crowe |
| William Crowninshield Endicott | William Crowther | William Crozier |
| William Crozier (General) | William Cruickshank | William Crutchfield |
| William Cubitt | William Cudmore McCullagh Lewis | William Cuffe |
| William Cuffe, 4. Earl of Desart | William Culbertson | William Culham Woodward |
| William Cullen | William Cullen (Begriffsklärung) | William Cullen (Politiker) |
| William Cullen Bryant | William Cullen Bryant Homestead | William Cullen, Baron Cullen of Whitekirk |
| William Cullom | William Cumback | William Cumberland Cruikshank |
| William Cumin | William Cumiskey | William Cumming |
| William Cumming Rose | William Cunningham | William Cunnington |
| William Cureton | William Curlin | William Curtis |
| William Curtis Bryson | William Curtis Chase | William Curtis Colepaugh |
