Robert Lacey (born 1944) is a British historian.
Robert Lacey may also refer to: Robert C. Lacey (1886–1943), American businessman and politician from New York Bert Lacey (Robert Herbert Lacey, 1900–1984), Australian politician Bob Lacey (born 1953), baseball pitcher Bob Lacey (American football) (1942–1997), American football wide receiver Bob Lacey of The Bob and Sheri Show Rob Lacey (1962–2006), British actor and author
See also Robert De Lacey (1892–1976), American film director Robert Lacey Everett (1833–1916), English farmer and politician Robert Lacy (disambiguation)