William Brock

William Brock may refer to:

• William Brock (MP), MP for City of Chester
• Bill Brock (1930–2021), American senator
• William Brock (Australian politician) (1851–1913), member of the Tasmanian House of Assembly
• William Brock (Canadian politician) (1836–1917), Canadian politician
• William Brock (pastor) (1807–1875), British nonconformist minister
• William A. Brock (born 1941), American economist
• William Emerson Brock (1872–1950), American politician, grandfather of Bill Brock
• William S. Brock (1895–1932), American aviator
• William John Brock (1817–1863), religious writer
• William Hodson Brock (1936–2025), British chemist and science historian