James Forrest Buchanan (July 1, 1876 – June 15, 1949) was a professional baseball player.

He was a right-handed pitcher over parts of one season (1905) with the St. Louis Browns.

For his career, he compiled a 5–9 record in 22 appearances, with a 3.50 earned run average and 54 strikeouts.

Buchanan attended Austin College and Midland Lutheran College.

This biographical article relating to an American baseball pitcher born in the 1870s is a stub.