James Alexander Hemenway (March 8, 1860 – February 10, 1923) was an American lawyer and politician who served as a United States representative from 1895 to 1905, and Senator from Indiana from 1905 to 1909.

[1] While in the House of Representatives, he was chairman of the Committee on Appropriations (Fifty-eighth Congress).

While in the Senate he was chairman of the Committee on University of the United States (Fifty-ninth and Sixtieth Congresses).

He donated generously to the Old Presbyterian Church in Boonville, which his family had attended for generations.

[2] He died in Miami, Florida; interment was in Maple Grove Cemetery, Boonville.