Iron Man Mark I - The Mark I (1), was the first Iron Man suit built and created by Tony Stark, in the initial events of the live-action film, Iron Man, and was later used to be transformed into the infamous Iron Monger by Obadiah Stane.

It was featured in the movie Iron Man, and made its debut  in the movie when Tony and Ho Yinsen were held captive by the terrorist group known as the Ten Rings. As they were held captive, they both devised a plan, through some old blueprints that displayed the image of the Mark I, thus marking the creation of Tony's first Iron Man suit.

The suit was very crude, due to its manual creation and the limited tools that were used to build it, unlike a proper creation like its successor, the Mark II, inside the Stark Mansion.

It has a few notable functionalities and weapons that it was equipped with, namely a Manually Deployed Rocket Launcher, a Flamethrower mounted on right arm, Jet Boots equipped on it's soles, an exposed Internal System attached to it's back, that runs and operates the whole suit's functionalities, and the very first Miniature Arc Reactor that powers the entire suit, and was later modified to a more advanced level called an Arc Reactor, to power almost all of the known Iron Man suits that exist at present.