Fission, a splitting of something into two or more parts, may refer to:

  • Fission (biology), the division of a single entity into two or more parts and the regeneration of those parts into separate entities resembling the original
  • Nuclear fission, when the nucleus of an atom splits into smaller parts
  • Fission (band), a Swedish death metal band
  • Fission (album), by Jens Johansson

See also edit