There are a number of people who have been (or are) named William Gibson.

• William Carleton Gibson, a neurologist in Victoria, British Columbia, Canada. Known as "Cecil Green's most expensive friend" due to his encouragement of Green's philanthropy
• William Gibson (novelist) (born 1948), science fiction/cyberpunk novelist, author of Neuromancer, credited with coining the term cyberspace
• William Gibson (Australian politician), Australian politician
• William Gibson (Canadian parliamentarian) (1849–1914), Canadian MP and Senator
• William Gibson (martyr) (died 1596), English Catholic martyr
• William Gibson (dentist) (born 1932?), American administrator and dentist, chairman of NAACP since 1985
• William Gibson (Member of Parliament) (1815–1890), Canadian Member of Parliament
• William Gibson (playwright) (born 1914), American playwright, author of The Miracle Worker
• William Gibson (producer), American independent film producer and director
• William Hamilton Gibson (1850–1896), American illustrator, author and naturalist

William Gibson | William Gibson