William J. Casey was the Director of Central Intelligence.
William, Willie, or Bill Casey may also refer to:
Sports Gaelic football Bill Casey (Gaelic footballer) (1918–1999), Irish Gaelic footballer Willie Casey (Gaelic footballer) (1932–2016), Irish Gaelic footballer Bill Casey (Dublin Gaelic footballer) (born 1939), Irish Gaelic footballer
Other sports Bill Casey (Australian footballer) (1872–1915), Australian rules footballer Mickey Casey (William Cofer Casey, 1905–1968), American baseball player William Casey (bobsleigh) (fl. 1940s), American bobsledder Willie Casey (born 1981), Irish professional boxer
Others William E. "Bert" Casey (died 1903), notorious Oklahoma Terroritory outlaw William Casey (priest) (1844–1907), Catholic priest and leading member of the Irish National Land League William Casey (bishop) (died 1591), Anglican bishop in Ireland Father William Casey, who established Father Casey's GAA in 1884 William Francis Casey (1884–1957), journalist and editor of The Times William Casey (Kentucky politician) (1754–1816), American politician, settler, and military officer William J. Casey (Massachusetts politician) (1905–1992), American politician Bill Casey (born 1945), Canadian politician William H. Casey (born 1955), American professor of chemistry and of geology
See also Casey (disambiguation) William (disambiguation) William Case (disambiguation)