| William Albert Ward | William Albright | William Albright (compositore) |
| William Alexander | William Alexander (generale americano) | William Alexander (generale statunitense) |
| William Alexander (generale) | William Alexander (pittore) | William Alexander Abbott |
| William Alexander Anthony Archibald Hamilton, XI duca di Hamilton | William Alexander Campbell | William Alexander Chilton |
| William Alexander Clarke Bustamante | William Alexander Forbes | William Alexander Gerhardie |
| William Alexander Graham | William Alexander Greer | William Alexander Louis Stephen Douglas Hamilton |
| William Alexander McKinlay | William Alexander Smith | William Alexander Trapp |
| William Alexander, I conte di Stirling | William Alfred Fowler | William Alfred Goldsworthy |
| William Alfred Rae Wood | William Ali Floyd | William Alison Anders |
| William Allan | William Alland | William Allen |
| William Allen (cardinale) | William Allen (politico) | William Allen Basie |
| William Allen Butler | William Allen Edwards | William Allen Egan |
| William Allen Horning | William Allen Thornbury | William Allen White |
| William Allen White Cabins | William Alleyne Cecil | William Allingham |
| William Allman | William Almon Wheeler | William Alonso |
| William Aloysius Brady | William Aloysius O'Connor | William Alphonso Murrill |
| William Alston | William Alves | William Alves (calciatore 1986) |
| William Alves (calciatore 1987) | William Alves (calciatore 1991) | William Alves de Oliveira |
| William Alvin Moody | William Alvord | William Alwyn |
| William Amar Keys | William Amaral de Andrade | William Ambroise Marçais |
| William Ambrose Wright | William Amelius Aubrey de Vere Beauclerk | William Ames |
| William Amherst | William Amherst, I conte Amherst | William Amine Hawi |
| William Amor | William Amorim | William Amponsah |
| William and Mary College | William Andelfinger | William Anders |
| William Anderson | William Anderson (ciclista) | William Anderson (hockeista su ghiaccio) |
| William Andre | William Andrew Pataky | William Andrewes |
| William Anin | William Anne Holles Capell | William Ansah Sessarakoo |
| William Anson | William Anthony Blalock | William Anthony Foulkes |
| William Anthony McGuire | William Anthony Morley | William Anthony Parker |
| William Anthony Perry | William Anthony Shinkman | William Anthony Toomey |
| William Antonio Maldonado López | William Antonio Maldonado Lopez | William ap Thomas |
| William Applegarth | William Aquin Carew | William Arboleda |
| William Archer | William Archer (naturalista) | William Archer Fullingim |
| William Archibald | William Archibald Cadell | William Archibald Spooner |
| William Arjona | William Arne Hanssen | William Arrol |
| William Artaud | William Arthur Bonds | William Arthur Carr |
| William Arthur Cummings | William Arthur Davis | William Arthur Johnson |
| William Arthur Klucas | William Arthur Miske | William Arthur Moloney |
| William Arthur Pailes | William Arthur Paxton | William Arthur Philip Louis |
| William Arthur Stanier | William Arthur Stickney | William Arthur Ward |
| William Artino | William Artur de Oliveira | William Ascroft |
| William Ashcroft | William Asher | William Asher (regista) |
| William Asher (sciatore nautico) | William Ashley Bradfield | William Ashley Kirby |
| William Ashman Fraker | William Ashurst | William Assandri |
| William Astbury | William Astor | William Astor, I visconte Astor |
| William Atheling Jr | William Atherton | William Atticus Shaffer |
| William Attrill | William Aubrey Beauclerk | William Aucamp |
| William Auguste Brevoort Coolidge | William Auguste Coolidge | William Augustine Whelan |
| William Augustus Banks III | William Augustus Barstow | William Augustus Tilden |
| William Auld | William Austin | William Austin (scrittore) |
| William Averell Harriman | William Avery | William Avery Rockefeller |
| William Axt | William Ayache | William Ayres Ward |
| William à Court, I barone Heytesbury | William B. Bulloch | William B. Davidson |
| William B. Davis | William B. Eerdmans | William B. Eerdmans Publishing Company |
| William B. Franke | William B. Hazen | William B. Helmreich |
| William B. Lenoir | William B. Mason | William B. Rosson |
| William B. Saxbe | William B. Strong | William B. Travis |
| William Babcock Hazen | William Babell | William Backhouse Astor |
| William Backhouse Astor, Jr. | William Backhouse Astor, Sr. | William Baeten |
| William Baffin | William Bagot | William Bagot, I barone Bagot |
| William Bagot, II barone Bagot | William Bagot, III barone Bagot | William Bagwell |
| William Bailey | William Baines | William Baird |
| William Baird (calciatore 1874) | William Baker | William Bakewell |
| William Bakewell (attore) | William Bakewell (marinaio) | William Baldry Tammas |
| William Baldwin | William Balikwisha | William Baliol Brett |
| William Ball | William Ball (astronomo) | William Ballard Hurd |
| William Ballard Preston | William Ballinger | William Balmer |
| William Barber | William Barbey | William Barbio |
| William Barclay | William Barclay (teologo) | William Barclay Masterson |
| William Barents | William Baring | William Baring, II barone Ashburton |
| William Barker | William Barker (traduttore) | William Barlow |
| William Barlow (mineralogista) | William Barlum Thompson | William Barner Lienhard |
| William Barr | William Barret Travis | William Barron Hilton |
| William Barry Taylor | William Barry Wood | William Barstow Strong |
| William Bart Saxbe | William Barta | William Bartley III |
| William Barton Rogers | William Bartram | William Basie |
| William Basil Percy Feilding | William Basinski | William Bassett |
| William Bassett (attore) | William Bates | William Bates Francis |
| William Bateson | William Bathurst Dove | William Batista |
| William Baumol | William Bayer | William Bayle Bernard |
| William Bayliss | William Baziotes | William Bøving |
| William Beardmore | William Beardmore and Company | William Beattie Feathers |
| William Beattie Ramsay | William Beau Mirchoff | William Beauclerk |
| William Beauclerk, IX duca di St. Albans | William Beauclerk, VIII duca di St. Albans | William Beauclerk, X duca di St Albans |
| William Beauclerk, X duca di St. Albans | William Beaudine | William Beaumont |
| William Beccaro | William Beckett | William Beckford |
| William Beckford di Somerley | William Becklean | William Beckman |
| William Beckmann | William Bedford | William Bedwell |
| William Beebe | William Beechey | William Bell |
| William Bell (cantante) | William Bell (cestista) | William Bell (fotografo) |
| William Bell (personaggio) | William Bell Dinsmoor | William Bell Scott |
| William Bellairs | William Belsham | William Bemrose |
| William Ben Hogan | William Bendix | William Benedict Nicholson |
| William Benjamin Lenoir | William Bennett | William Bennett (compositore) |
| William Bennett (musicista) | William Bennett (politico canadese) | William Bennett (politico statunitense 1943) |
| William Bennett (politico statunitense) | William Bennett (politico) | William Benson |
| William Benson Thomas | William Bent | William Bentinck |
| William Bentinck, 1° Conte di Portland | William Bentinck, 1º Conte di Portland | William Bentinck, I conte di Portland |
| William Bentinck, II duca di Portland | William Bentinck, IV duca di Portland | William Beresford |
| William Beresford (ufficiale) | William Beresford, I visconte Beresford | William Berger |
