Ultimax

Ultimax may refer to:


 * US sames name for the Commodore MAX Machine
 * Ultimax 100, a firearm
 * Persona 4 Arena Ultimax, a 2013 video game
 * A model of engine used by the Doble steam car
 * A brand of sock formerly sold by the Wigwam Mills hosiery company
 * The Ultimax Man, a 1978 novel by Keith Laumer
 * An alias of the DC Comics supervillain Brain