Theron Metcalf (October 16, 1784 – November 12, 1875) was an American attorney and politician from Massachusetts.

He was a New England jurist and served as an associate justice of the Massachusetts Supreme Judicial Court.

[10] He served as Norfolk County Attorney for twelve years, until the position was eliminated.

[14] In 1831, 1833 and 1834, he served as a member of the Massachusetts House of Representatives, and was chairman of the Judiciary Committee.

[17] Metcalf donated a set of fifty volumes of ordination sermons that he had collected to Brown University.