MP4, formally MPEG-4 Part 14, is a digital multimedia format for storing video and audio.

MP4 may also refer to:

  • Møller–Plesset perturbation theory of the fourth order in computational chemistry
  • Mario Party 4, a 2002 video game for GameCube
  • Metroid Prime 4: Beyond, an action-adventure video game for Nintendo Switch
  • MP4 (band), a band made up of UK Members of Parliament
  • Mammal Paleogene zone 4, a division of the Paleogene period
  • McLaren MP4/1, the McLaren team's Formula One car
  • MP4, a 2000 album by Michael Penn

See also

  • MP4 player, a marketing name for certain portable media players