Gilkey is an American surname. Notable people with the surname include:
Art Gilkey (1926–1953), American geologist and mountaineer Bernard Gilkey (born 1966), American baseball player Bertha Gilkey (1949–2014), African-American activist of tenant management of public housing properties Garrett Gilkey (born 1990), American football offensive guard Gordon Gilkey (1912–2000), American artist, educator, and promoter of the arts from Oregon Helen Margaret Gilkey (1886–1972), American mycologist and botanist Howard Gilkey (1890–1972), American landscape architect John Charles Gilkey, book and document thief John Gilkey, American actor, comedian, juggler and clown Langdon Brown Gilkey (1919–2004), American Protestant Ecumenical theologian Peter B. Gilkey (born 1946), American mathematician Randy Gilkey (born 1976), American singer, songwriter and producer Richard Gilkey (1925–1997), American painter
See also Gilkeya, a genus of fungi