Anson P. Morrill (June 10, 1803-July 4, 1887) was an American statesman. Born in 1803 in Belgrade, Maine, originally a storekeeper and millkeeper, he was the Governor of Maine from 1855 to 1856, represented Maine's fourth district in the United States House of Representatives from 1861 to 1863 and served in the Maine state legislature. He was older brother to Lot M. Morrill, a U.S. Treasury Secretary under President Ulysses S. Grant. He died in 1887 in Augusta, Maine and is buried at the Forest Grove Cemetery, Augusta, Maine.
After his term as Governor, Morrill served as president of the Maine Central Railroad 1864-1866 and again 1873-1875. Following his second term as the railroad's president, he served as vice president for the railroad until his death in 1887.