Michael John Garvin, also known as Michael J. Garvin, and M. J. Garvin (1861-1918), was an American architect from Bronx, New York. A graduate of Manhattan College, he served as the first Building Commissioner of the borough (1897-1903) and its first Under Sheriff. With the placement of the influential IRT Third Avenue Elevated train, Garvin was immersed in designing many surrounding structures during the borough's increasing growth at the turn of the 20th Century. Of his architectural contributions the Haffen Building; the Fire House, Hook and Ladder 17; and the Bronx Borough Courthouse  have all become New York City landmarks while the latter a US National Historic Place.