Forest is both a surname and a given name. Notable people with the name include:
Surname:
Frank Forest (1896–1976), American opera singer
Jean-Claude Forest (1930–1998), French comic book author and creator of Barbarella
Jessé de Forest (1576–1624), leader of a group of Walloon Huguenots fleeing religious persecution
Jim Forest (born 1941), writer, lay theologian, educator, peace activist
John Forest (1471–1538), English Roman Catholic martyr and friar
John William De Forest (1826–1906), American soldier and writer
Lee De Forest (1873–1961), American inventor with over 180 patents to his credit
Philippe Forest (born 1962), French author and professor of literature
Roy De Forest (1930–2007), American painter
Given name:
Forest Dewey Dodrill (1902–1997), doctor who performed the first successful open heart surgery
Forest Ray Moulton (1872–1952), American astronomer
Forest Sale (1911–1985), American basketball player
Forest Whitaker (born 1961), American actor, producer and director
Forest Yu (born 1991), former TSFX employee