Alonzo Hartwell (February 19, 1805 – January 17, 1873) was an engraver and portrait artist in Boston, Massachusetts, in the 19th century.

[3] Hartwell's work appeared in the American Magazine of Useful and Entertaining Knowledge and other publications.

Among Hartwell's students were artists George Loring Brown and Benjamin F.

[4] In 1850, he received the silver medal of the Charlestown, Massachusetts, Mechanics' Association.

He is buried in Mount Feake Cemetery in Waltham, Massachusetts.