James Barr may refer to: James Barr (author), who writes mainly on the Middle East James Barr (presenter) (born 1984), British radio and television presenter James Barr (composer) (1779–1860), Scottish composer; composed the tune which inspired that which is now used for "Waltzing Matilda" James Barr (politician) (1862–1949), British Labour Party politician; MP for Motherwell, 1924–1931; Coatbridge, 1935–1945 James Barr (biblical scholar) (1924–2006), British Old Testament scholar and philologist James R. Barr (1884–1910), Scottish engineer and lecturer in Electrical Engineering at Heriot-Watt College, Edinburgh James Clayton Barr (1856–1937), Commodore of the Cunard line Jim Barr (born 1948), baseball player Anthony James Barr (born 1940), also known as Jim Barr, software engineer James Barr (physician) (1849–1938), Irish physician