The planet Earth is the third planet from the Sun.

Planet Earth may also refer to:

• Planet Earth (film), a 1974 science fiction television film
• Planet Earth (1986 TV series), a PBS television documentary series about the geosciences
• Planet Earth franchise of nature documentaries produced by BBC:
  • Planet Earth (2006 TV series), a BBC nature television documentary series
  • Planet Earth II, a 2016 BBC nature television documentary series (sequel to Planet Earth)
  • Planet Earth III, a 2023 BBC nature television documentary series (third installment in the series)
  • Planet Earth Live, a 2010 BBC nature documentary film

• "Planet Earth", a song by Devo on the 1980 album Freedom of Choice
• "Planet Earth" (Duran Duran song), a 1981 single by Duran Duran
• Planet Earth, a 1997 album by Mother's Army
• "Planet Earth" (Eskimo Joe song), a 2001 single by Eskimo Joe
• Planet Earth (soundtrack), the soundtrack album for the 2006 BBC nature documentary series Planet Earth
• Planet Earth (Prince album), a 2007 album by Prince and the title track of the album
• "Planet Earth", a 2009 spoken word poem by Michael Jackson included on the album This Is It

• Earth (disambiguation)