William Bain

• Bill Bain , American management consultant, founder of Bain & Company
• Bill Bain , American football player
• Bill Bain , Australian-born television director
• William Bain, academic
• William Bain , Scottish Royal Navy officer, inventor, and steamship captain
• William Alexander Bain, Scottish pharmacologist
• William J. Bain, Seattle architect, co-founder of NBBJ
• Willie Bain, Scottish politician