Mark 13 (disambiguation)

Mark 13 or Mk 13 can refer to:

• Mark 13, thirteenth chapter of the Gospel of Mark in the New Testament of the Christian Bible
• Mark 13 nuclear bomb, experimental nuclear weapon developed by the United States from 1951 to 1954
• Mark 13 torpedo, U.S. Navy's most common aerial torpedo of World War II
• Mk 13 missile launcher, guided missile launching system for naval vessels
• MK 13 MOD 0, Enhanced Grenade Launching Module for the FN SCAR Combat Assault Rifle
• M.A.R.K. 13, a 1990 science-fiction and horror movie.