Lehtinen is a Finnish surname of Virtanen type derived from the word lehti, "leaf". Notable people with the surname include:

• Alex Lehtinen (born 1996), Finnish footballer
• Dexter Lehtinen (born 1946), American attorney and law professor
• Eino Lehtinen (1900–2007), Finnish centenarian, one of the last surviving veterans of the Finnish Civil War
• Helena Lehtinen (born 1952), Finnish jeweller
• Ileana Ros-Lehtinen (born 1952), American politician
• Inkeri Lehtinen (1908–1997), Finnish politician
• Jani Lehtinen (born 1974), Finnish racewalker
• Jarmo Lehtinen (born 1969), Finnish rally co-driver
• Jarmo Lehtinen (commentator), Finnish sports commentator and journalist
• Jere Lehtinen (born 1973), Finnish professional ice hockey forward
• Jutta Lehtinen (born 1983), Finnish actress
• Kai Lehtinen (born 1958), Finnish actor
• Kalle Lehtinen (born 1968), Finnish footballer
• Lasse Lehtinen (born 1947), Finnish politician
• Lauri Lehtinen (1908–1973), Finnish athlete
• Matti Lehtinen (1922–2022), Finnish operatic baritone
• Mika Lehtinen (born 1975), Finnish professional ice hockey defenceman
• Pekka T. Lehtinen, Finnish arachnologist
• Petteri Lehtinen (born 1973), Finnish medley swimmer
• Rauno Lehtinen (1932–2006), Finnish conductor and composer
• Rene Lehtinen (born 1985), Finnish motorcycle speedway rider
• Sandra Lehtinen (1859–1954), Finnish politician
• Timo Lehtinen, Finnish musician
• Toni Lehtinen (born 1984), Finnish professional football player
• Torsti Lehtinen (1942–2023), Finnish writer and philosopher
• Tuija Lehtinen (born 1954), Finnish writer
• Ville Lehtinen (born 1978), Finnish footballer

• All pages with titles containing Lehtinen
• Lehti, the corresponding Laine type surname