William Cross may refer to:
Bill Cross (1917–2015), British soldier Billy Cross (American football) (1929–2013), American football player Billy Cross (born 1946), American guitarist, singer and producer
William Cross (politician) (1856–1892), British Member of Parliament for Liverpool West Derby, 1888–1893 William Cross (rower) (1908–1993), Australian Olympic rower William Cross (rugby union) (1851–1890), Scottish rugby union player and referee William E. Cross Jr. (born 1940), professor at the CUNY Graduate Center
Will Cross, American mountain climber Willie Cross (1883–1949), Scottish footballer The pseudonym of John Williams (convict), transported to Van Diemen's Land