John Barr may refer to: John Watson Barr (1826–1907), U.S. federal judge John Barr (Canadian politician) (1843–1909), Canadian physician and politician John Barr (New Zealand politician) (1867–1930), member of the New Zealand Legislative Council John Barr (poet) (1809–1889), New Zealand poet John Barr (basketball) (1918–2002), American basketball player John Barr (shinty) (born 1982), Scottish shinty player John Barr (footballer, born 1885) (1885–?), Scottish footballer (Grimsby Town) John Barr (footballer, born 1917) (1917–1977), Scottish footballer John Barr (librarian) (1887–1971), New Zealand librarian John E. Barr (1913–2010), member of the Governing Body of Jehovah's Witnesses John Barr, president of Poetry Foundation John Barr, a fictional character and namesake of the Jonbar hinge concept