William Fairbairn (disambiguation)

William Fairbairn, 1st Baronet (1789 – 1874) was a Scottish engineer.

William Fairbairn is also the name of:

• William E. Fairbairn (1885–1960), British soldier and police officer
• William Fairbairn & Sons
• Bill Fairbairn (born 1947), ice hockey player
• William Ronald Dodds Fairbairn (1889 – 1964), member of the British Psychoanalytical Society