William Dunbar was a Scottish poet.
William Dunbar may also refer to:
People Sir William Dunbar, 7th Baronet (1812–1889), Scottish Liberal Member of Parliament in the British House of Commons William Dunbar (bishop) (1661–1746), Scottish Episcopal clergyman William Dunbar (explorer) (1750–1810), Scottish and American naturalist, astronomer, explorer William Dunbar (politician) (1805–1861), U.S. Representative from Louisiana William Dunbar (songwriter) (1852/53–1874), prolific Gateshead songwriter William C. Dunbar (1822–1905), Scottish Mormon missionary and Mormon pioneer William F. Dunbar (1820–?), American politician and first Minnesota State Auditor William P. Dunbar (1863–1922), American physician who made seminal discoveries about cholera control
Fictional characters William Dunbar (Code Lyoko), in the animated television series Code Lyoko
See also William Dunbar House, Boise, Idaho, United States, on the National Register of Historic Places