Obviously none below are revealed as mutants because mutants aren’t a thing in MCU yet…
I haven’t seen all the movies so I may be missing some.
Scarlet Witch (former mutant in comics, could be retconned back)
Quicksilver (same as Wanda)
Ms. Marvel ( might be revealed as mutant instead of inhuman/possible retcon as a mutant in comics)
Professor Xavier
Namor
Mr. Immortal
Sabra
El Aguila
Are the mutants from Deadpool movies canon?
Ursa (is that Ursa Major from Black Widow?)
Anyone else?