Secret Heart may refer to:"Secret Heart", a jewelry brand by SDI AG, Switzerland
"Secret Heart", a song by The Monkees from their 1987 album Pool It!
"My Secret Heart", a song by Kylie Minogue from her 1989 album Enjoy Yourself
"Secret Heart", a song by Ron Sexsmith from his 1995 album Ron Sexsmith
"Secret Heart", a cover of this song by Rod Stewart from his 1998 album When We Were the New Boys
"Secret Heart", a cover of this song by Feist from her 2005 album Let It Die
"Secret Heart", a cover of this song by Katey Sagal from her 2013 album Covered
Secret Heart, a 3-part National Geographic documentary about the functions of the heart (2007)
Secret Heart (book), a children's book by David Almond
The Secret Heart, a 1946 film