Mark III

Mark III could refer to various items in the Halo universe:


 * MJOLNIR Mark III - A prototype battle suit produced by, which preceded the more well-known MJOLNIR Mark IV.
 * Mark III exoskeleton - A line of prototype armoured exoskeletons introduced to the UNSC in 2510.
 * HRUNTING Mark III [B] Cyclops - A later iteration of the Mark III exoskeleton produced by, often nicknamed the "Cyclops".