Egoist (noun)
An advocate of egoism.
Egoist (noun)
An egocentric or self-centered person.
Egoist (noun)
An egotist.
Egotist (noun)
A person who talks excessively about himself or herself.
Egotist (noun)
A person who believes in his or her own importance or superiority.
Egotist (noun)
An egoist.
Wiktionary
Egotist (noun)
a person who is excessively conceited or absorbed in themselves; self-seeker
“he is a self-absorbed egotist”
Oxford Dictionary