The name Alisson is a girl's name . Alisson and discussed in our forums with posts like "Makeover name game: from one gender to the other".
From the experts:
With the still popular Allison ranking at Number 60 in the United States, and variant Alison sitting at Number 343—not to mention Allyson (Number 490 and Alyson (Number 835)—Alisson will unfortunately seem more like a spelling error than a legitimate name.
Alisson Euler de Freitas Castro, frequently known by just his first name, is a Brazilian footballer.