William Lynn

William Lynn may refer to:


 * Bill Lynn (1921–2000), American baseball player
 * Billy Lynn (born 1947), former English professional footballer
 * William Henry Lynn (1829–1915), Irish-born architect
 * Msgr. William J. Lynn, Roman Catholic official on trial in 2012 in a conspiracy and endangerment/child sex abuse case in Philadelphia
 * William J. Lynn III (born 1954), Deputy Secretary of Defense of the United States of America
 * William Harkins Lynn (1888–1952), American actor who played Judge Gaffney in Harvey (1950)
 * William Michael Lynn, professor at Cornell University's School of Hotel Administration