- William
- William, It Was Really Nothing
- William, principe del Galles
- William-Adolphe Bouguereau
- William "Old Bill" Williams
- William "Rip" Robertson
- William & Kate: Una storia d'amore
- William & Kate - Un amore da favola
- William & Kate - Una favola moderna
- William (calciatore 1968)
- William (rapper)
- William A. Beardslee
- William A. Brady
- William A. Clark
- William A. Fraker
- William A. Graham
- William A. Horning
- William A. Lyon
- William A. Owens
- William A. Pailes
- William A. Peffer
- William A. Seiter
- William A. Shinkman
- William A. Tilden
- William A. Ward
- William A. Wellman
- William A. Williams
- William Aalto
- William Aberhart
- William Absolon
- William Accambray
- William Ackerman
- William Acton
- William Adam
- William Adam (architetto)
- William Adam (malacologo)
- William Adam (politico)
- William Adams
- William Addison
- William Addison Dwiggins
- William Adornado
- William Afton
- William Agada
- William Aitken
- William Aiton
- William Akio
- William Alatalo
- William Albert Ablett
- William Albert Wack
- William Albert Ward
- William Albright
- William Albright (compositore)
- William Alexander
- William Alexander, I conte di Stirling
- William Alexander (generale)
- William Alexander (pittore)
- William Alexander Forbes
- William Alexander Graham
- William Alexander Smith
- William Alfred Fowler
- William Allan
- William Alland
- William Allen
- William Allen (cardinale)
- William Allen (politico)
- William Allen Butler
- William Allen Egan
- William Allen White
- William Allen White Cabins
- William Allingham
- William Allman
- William Alonso
- William Aloysius O'Connor
- William Alphonso Murrill
- William Alston
- William Alves
- William Alves (calciatore 1986)
- William Alves (calciatore 1987)
- William Alves (calciatore 1991)
- William Alvord
- William Alwyn
- William Amaral de Andrade
- William Ames
- William Amponsah
- William Andelfinger
- William Anders
- William Anderson
- William Anderson (ciclista)
- William Anderson (crickettista)
- William Anderson (hockeista su ghiaccio)
- William Andre
- William Andrewes
- William Anin
- William Ansah Sessarakoo
- William Anson
- William Anthony McGuire
- William Aquin Carew
- William Arboleda
- William Archer
- William Archer (naturalista)
- William Archibald
- William Archibald Cadell
- William Archibald Spooner
- William Arjona
- William Arne Hanssen
- William Arrol
- William Artaud
- William Arthur Ward
- William Artur de Oliveira
- William Ascroft
- William Asher
- William Asher (regista)
- William Asher (sciatore nautico)
- William Ashley Bradfield
- William Ashley Kirby
- William Ashurst
- William Assandri
- William Astbury
- William Astor, I visconte Astor
- William Atherton
- William Attrill
- William Aucamp
- William Auguste Coolidge
- William Augustus Barstow
- William Auld
- William Austin
- William Austin (scrittore)
- William Avery
- William Avery Rockefeller
- William Axt
- William Ayache
- William Ayres Ward
- William B. Bulloch
- William B. Davidson
- William B. Davis
- William B. Eerdmans Publishing Company
- William B. Hazen
- William B. Helmreich
- William B. Lenoir
- William B. Rosson
- William B. Strong
- William Babell
- William Backhouse Astor
- William Backhouse Astor, Jr.
- William Baeten
- William Baffin
- William Bagot
- William Bagot, III barone Bagot
- William Bagot, II barone Bagot
- William Bagot, I barone Bagot
- William Bagwell
- William Bailey
- William Baines
- William Baird
- William Baird (calciatore 1874)
- William Bakewell
- William Bakewell (attore)
- William Bakewell (marinaio)
- William Baldwin
- William Balikwisha
- William Ball
- William Ball (astronomo)
- William Ballard Preston
- William Balmer
- William Barbey
- William Barbio
- William Barclay
- William Barclay (allenatore)
- William Barclay (disambigua)
- William Barclay (teologo)
- William Baring, II barone Ashburton
- William Barker
- William Barker (traduttore)
- William Barlow
- William Barlow (mineralogista)
- William Barlum Thompson
- William Barr
- William Barret Travis
- William Barry Taylor
- William Bart Saxbe
- William Barta
- William Bartley III
- William Barton Rogers
- William Bartram
- William Basinski
- William Bass
- William Bassett
- William Bassett (attore)
- William Bateson
- William Batista
- William Baumol
- William Bayer
- William Bayle Bernard
- William Bayliss
- William Baziotes
- William Beardmore
- William Beardmore and Company
- William Beauclerk, IX duca di St. Albans
- William Beauclerk, VIII 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
Estratto da "https://it.wikipedia.org/wiki/Speciale:Prefissi/William"