William Casey (disambiguation)

William J. Casey was the Director of Central Intelligence.

William, Willie, or Bill Casey may also refer to:

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 (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