Patrick Ryan may refer to:
Patrick Ryan (athlete) (1881–1964), U.S. Olympic athlete and New York City police officer
Patrick Ryan (author and journalist) (1916–1989), English author
Patrick Ryan (author) (born 1965), American novelist and editor
Patrick Ryan (Irish politician) (1898–1944), Irish Sinn Féin politician from Tipperary
Patrick Ryan (Irish priest) (born 1930), Irish Catholic priest and alleged IRA supplier
Patrick D. Ryan (1920–2004), Mayor of Galway from 1962 to 1963
Patrick G. Ryan (1838–1906), leather manufacturer and political figure in New Brunswick
Patrick W. Ryan (died 1993), Irish politician
Pat Ryan (executive) (Patrick G. Ryan), founder and retired executive chairman of Aon Corporation
Patrick J. Ryan (chaplain) (1902–1975), Chief of Chaplains of the U.S. Army
Patrick John Ryan (1831–1911), Irish-American bishop
Patrick Joseph Ryan (1904–1969), Australian anti-communist priest
Patrick Ryan (wheelchair rugby) (born 1981), Australian Paralympic wheelchair rugby union player
Patrick J. D. Ryan, member of the States of Jersey
Paddy Ryan (1851–1900), Irish-American boxer
Father Patrick Ryan, S.J., former President of Loyola Jesuit College