John Arthur may refer to:
John Arthur (cricketer) (1847–1877), cricketer for Tasmania
John Arthur (rugby union) (1848–1921), Scottish rugby football player
John Arthur (Australian politician) (1875–1914), Australian Minister for External Affairs
John Arthur (missionary) (1881–1952), medical missionary and Church of Scotland minister
Johnny Arthur (1883–1951), American stage and motion picture actor
John Arthur (Ghanaian politician) (1915–?), Ghanaian politician
Jackie Arthur (1917-1986), English footballer
John Arthur (philosopher) (1946–2007), American ethicist and philosophy professor
John Arthur (boxer) (1929–2005), South African boxer
John R. Arthur Jr., American materials scientist
John Dada Arthur (born 1994), Ghanaian footballer
John Arthur (Utah politician)