William Archer
William (or Bill) Archer may refer to:
- Bill Archer (businessman) (born ?), British businessman
- Bill Archer (Manitoba politician) (born 1957), Canadian politician
- William Andrew Archer (1894–1973), U.S. economic botanist and plant collector
- William Archer (architect) (1820–1874), Tasmanian architect, naturalist, and politician
- William Archer (Australian politician) (1831–1925), New South Wales politician
- William Archer (critic) (1856–1924), Scottish dramatic critic and translator of Ibsen
- William Archer (naturalist) (1830–1897), Irish naturalist and microscopist especially interested in Protozoa and Desmids
- William Archer (Toronto politician) (1919–2005), Canadian municipal politician
- William Reynolds Archer, Jr. (born 1928), U.S. Representative from Texas
- William S. Archer (1789–1855), U.S. Senator and Representative from Virginia