William Pritchard may refer to:

• William Pritchard (American football) (1901–1978), American football player and coach
• William Arthur Pritchard (1888–1981), Canadian Marxist labour activist
• William H. Pritchard (born 1932), American literary critic
• William Thomas Pritchard (1829–1907), British consul and adventurer
• Bill Pritchard (footballer) (1927–2011), Australian rules footballer