The Marvel Universe is full of unfathomably powerful villains, many of which have found their way into the live-action movies at some point or another. The various villains of Marvel movies exist on a wide spectrum of power levels, from lowly criminals and up-jumped thugs to overwhelmingly influential cosmic beings. From the films of the MCU to the one-off Marvel movies that came before it, only a select handful of antagonists can bear the distinction of being the strongest.

In most cases, the most powerful evil beings in Marvel canon exist as overarching or background threats that aren't easily defeated, merely driven into a corner or staved off with the expectation of eventually coming back. Their strength is often proven by staggering feats of power, such as destroying entire planets or re-writing reality itself. From tyrannical aliens to supernatural forces of the universe, Marvel's strongest movie villains aren't to be taken lightly.