Henry Martyn Dexter (August 13, 1821 – November 13, 1890) was an American Congregational clergyman and author.

[3] He was an authority on the history of Congregationalism and was lecturer on that subject at the Andover Theological Seminary in 1877–1880.

[4] He left his fine library on the Puritans in America to Yale University.

[2] In addition to the books listed below, he authored many reprints of pamphlets bearing on early church history in New England, especially Baptist controversies.

His The England and Holland of the Pilgrims was completed by his son, Morton Dexter (born 1846), and published in 1905.