William Gillespie

William or Bill Gillespie may refer to:


 * William Gillespie (actor) (1894–1938), Scottish actor
 * William Gillespie (New Zealand politician) (1893–1961), New Zealand politician of the National Party
 * William Ernest Gillespie (1912–1967), American educator
 * William John Gillespie (1897–1967), Canadian World War I flying ace
 * Willie Earl Gillespie (born 1961), American football wide receiver
 * Bill Gillespie (journalist) (born 1946), Canadian journalist and author
 * Bill Gillespie (politician) (1928–2008), American politician
 * Bill Gillespie (footballer) (1887–1927), Australian rules footballer
 * Bill Gillespie (rugby league) (1894–1945), Australian rugby league player
 * Billie Gillespie (1873–1942), English footballer
 * Billy Gillespie (1891–1981), Irish footballer
 * William David Gillespie (born 1934), New Zealand rugby union player