Montresor is a surname, and may refer to:
Adelaide Montresor, née Adelaide Malanotte (1785–1832), Italian opera singer Beni Montresor (1926–2001), Italian artist and illustrator Frederick Montresor (1811–1887), British admiral Henry Montresor (1767–1837), British army general James Gabriel Montresor (1704–1776), British military engineer John Montresor (1736–1799), British military engineer and cartographer Maxminio Montresor (born 1980), Brazilian football goalkeeper