Ernest Wadsworth Longfellow (1845–1921) was an American artist in Boston, Massachusetts, and New York.

Ernest Longfellow was born in Cambridge, Massachusetts, and raised at Craigie House.

Educated at Harvard College, he passed the winter of 1865 and '66 in Paris in work and study, and the summers of 1876 and '77 in Villiers-le-Bel under Couture.

An 1874 newspaper gossiped about him: "Ernest Longfellow, the son of the poet, is described as a slender, delicate young man, an artist of talent, great at ten-pins, and tip-top at gunning.

"[8] Longfellow bequeathed some 55 paintings from his collection to the Museum of Fine Arts, Boston, including works by Jacopo Bassano,[9] John Constable,[9] Thomas Couture,[9] Luca Giordano,[9] and others.