Henry G. Bailly (October 29, 1828 – January 7, 1865) was an American businessman and politician.
Bailly was born in the area of Michigan Territory that would later become Minnesota and his father was Alexis Bailly. Bailly had mixed European and Native American ancestry through both his parents.
Bailly lived in Hastings, Minnesota with his wife and family and was a merchant; Bailly served as the postmaster of Hastings in 1854 and 1855. Bailly served in the Minnesota Territorial Council in 1856 and 1857 and was a Democrat. He then served in the Minnesota Democratic Constitutional Convention in 1857 and in the Minnesota Senate in 1857 and 1858. Bailly served in the Union Army during the American Civil War and was killed in the Battle of Nashville in 1865.[1][2]