James Barr
James Barr may refer to:
- James Barr (moderator), Moderator of the General Assembly of the Church of Scotland in 1853
- James Barr (author), British author who writes mainly on the Middle East
- James Barr (biblical scholar), British Old Testament scholar and philologist
- James Barr (composer), Scottish composer; composed the tune which inspired that which is now used for "Waltzing Matilda"
- James Barr (physician), Irish physician
- James Barr (politician), British Labour Party politician; MP for Motherwell, 1924–1931; Coatbridge, 1935–1945
- James Barr (presenter), British radio and television presenter, LGBT+ activist, creator of podcast A Gay and a NonGay
- James Clayton Barr, Commodore of the Cunard line
- James R. Barr, Scottish engineer and lecturer in Electrical Engineering at Heriot-Watt College, Edinburgh
- Jim Barr, American baseball player
- Anthony James Barr, also known as Jim Barr, American software engineer