Trine is a North American surname. Notable people with the surname include:
Grace Hyde Trine (1874–1972), American writer, lecturer, dramatic reader; wife of Ralph Waldo Trine Greg Trine, American author of children’s books and young adult fiction Ralph Waldo Trine, American philosopher and educator Will Orian "Dad" Trine (1869–1907), American professional sprinter and collegiate coach of track and basketball
See also Trine (disambiguation) Karen Trines (born 1986), Canadian curler from Nepean