Seeley is a variation of the Anglo-Norman Sealy surname. Notable people with the surname include:
Alastair Seeley (born 1979), motorcycle racer, currently competing in the British Superbike Championship
Blossom Seeley (1891–1974), American Vaudeville performer, teamed with Benny Fields
Bob Seeley (born 1928), American boogie woogie pianist
Christopher Seeley (born 1987), mayor of Linesville, Pennsylvania
Colin Seeley (born 1936), former motorcycle sidecar racer and motorcycle manufacturer
D. J. Seeley (born 1989), basketball player for Maccabi Tel Aviv of the Israeli Premier League and the Euroleague
Drew Seeley (born 1982), a Canadian actor
Elias P. Seeley (1791–1846), American Whig politician, 11th governor of New Jersey
George Seeley (1877–1921), English footballer with Southampton and Queens Park Rangers
Gerald Seeley (1903—1941), English cricketer
Harry Seeley (1839–1909), British paleontologist
Ken Seeley (born 1962), American television personality
John Seeley (disambiguation), multiple people
Mabel Seeley (1903–1991), American mystery book author
Mildred Seeley (1918–2001), doll collector, doll-related entrepreneur and prolific author on the subjects of doll
Richard Seeley (born 1979), Canadian ice hockey defenceman
Robert Seeley (1602–1668), Puritan settler in Massachusetts Bay Colony
Robert Thomas Seeley, American mathematician
Stuart William Seeley (1901–1978), American electrical engineer
Tim Seeley (fl. 2000s), American comic book artist
Walter Seeley (born 1941), American boxer
William Henry Harrison Seeley (1840–1914), the first American citizen to be awarded the Victoria Cross
