Hosea Hunt Rockwell (May 31, 1840 – December 18, 1918) was an American lawyer, Civil War veteran, and politician who served one term as a U.S. Representative from New York from 1891 to 1893.

Born in Lawrenceville, Pennsylvania, Rockwell attended the common schools.

He served as a private in the Twenty-third Regiment, New York Volunteers, in 1861 and 1862.

He was a member of the New York State Assembly (Chemung Co.) in 1877.

He resumed the practice of law in Elmira, New York.