Lost Years may refer to:
Lost Years (film), a 1911 silent film dramatic short Lost Years: A People's Struggle for Justice, a 2011 documentary film The Lost Years (Gli anni perduti), a 1944 novel by Vitaliano Brancati
See also Lost Years of Merlin series, a novel series by T. A. Barron Unknown years of Jesus, a period in the life of Jesus Lost Decade (disambiguation)