Ephraim Emerton (February 18, 1851 – March 3, 1935) was an American educator, author, translator, and historian prominent in his field of European medieval history.

[3] Returning to Massachusetts the following year, he married Sybil M. Clark of Cambridge and accepted a teaching position at Harvard.

[1] A devout Unitarian, he taught at the Harvard Divinity School and most of his writings deal with religious figures and issues.

[5] In 1884, Emerton became one of the founders of the oldest and largest historians' society in the United States, the American Historical Association.

[3] Throughout his life he was active in numerous academic organizations including the New England History Teachers' Association, the Massachusetts Historical Society, the Essex Institute and the American Academy of Arts and Sciences of which he was a Fellow.