Alisson is a spelling of Allison that is especially popular in Latin America, including Mexico and Brazil; Alison began as a medieval French pet form of Alice and means "noble" or "of noble kind". In the United States it is used mainly in Spanish-speaking families. Alisson entered the top 1000 in 2018 and has climbed from number 909 that year to number 511 in 2025, its best rank so far.