Whitmore is a surname. Notable people with the surname include:
Alfred Whitmore (1876–1946), English pathologistDerek Whitmore (born 1984), American hockey playerElias Whitmore (1772–1853), US congressman from New YorkCharles Algernon Whitmore (1851–1908), British Conservative Member of Parliament (MP) for Chelsea 1886–1906Frank C. Whitmore (1887–1947), American chemistFrances Whitmore (1666–1695), English aristocratColonel Sir Francis Whitmore (1872–1962), English soldierJames Whitmore (1921–2009), American actorJames Whitmore Jr. (born 1948), American actorJohn Whitmore (surfer), South African surfing pioneerKeith Bernard Whitmore, American Episcopalian bishopTamika Whitmore (born 1977), American basketball playerTheodore Whitmore (born 1972), a football midfielder from Jamaica.