"If I Had a Hammer" is a song written by Pete Seeger and Lee Hays, later recorded by Peter, Paul, and Mary, Trini Lopez, and Leonard Nimoy.

If I Had a Hammer may also refer to:

"If I Had a Hammer", a different song by American Music Club from their 1994 album Mercury "If I Had a Hammer" (Hercules: The Legendary Journeys), a 1998 episode of Hercules: The Legendary Journeys If I Had a Hammer (film), a film by independent filmmaker Josh Becker "If I Had a Hammer" (CSI), an episode of the TV series CSI: Crime Scene Investigation If I Had a Hammer (Dexter), an episode of the TV series Dexter If I Had a Hammer: Songs of Hope & Struggle, a 1998 compilation album by Pete Seeger See also "Man-with-a-hammer syndrome", the cognitive bias otherwise known as law of the instrument