William Law (1686–1761) was an English divine and theological writer.
William Law may also refer to:
William Law (Lord Provost) (1799-1878) Lord Provost of Edinburgh William Law (Latter Day Saints) (1809–1892), Irish-born American leader and apostate in the Latter Day Saint movement William Law (cricketer) (1851–1892), English amateur cricketer William D. Law, President of Tallahassee Community College, Florida William Henry Law (1803–1881), Connecticut state legislator William Law (Canadian politician) (1833–1901), merchant and political figure in Nova Scotia, Canada William John Law (1786–1869), British judge William A. Law, former director of Chatham and Phenix National Bank Bill Law, English drummer, formerly of My Dying Bride William A. H. "Bill" Law (1913-2004), Ottawa controller and alderman Arthur Law (playwright) (William Arthur Law, 1844–1913), English playwright Bill Law (diver) (1934–2009), Scottish diver