John Frazer

John Frazer may refer to:

• John Frazer (Australian footballer) (born 1956), Australian rules footballer for North Melbourne and Fitzroy
• John Frazer (architect) (born 1945), English architect and CAD pioneer
• John Frazer (cricketer) (1901–1927), Australian-born English cricketer
• John Frazer (politician) (1827–1884), Irish-born Australian politician
• John Fries Frazer (1812–1872), American geologist
• John W. Frazer (1827–1906), American soldier, planter, and businessman