Aiken is a gender-neutral name and is of English origin. It can be used for both girls and boys. It means oak. Pronounced as ey-kun, the name is currently in the top 500 of NameChef Most Popular Baby Names and in the top 1000 of U.S birth chart of the year 2019.
Aiken can be used for both boys and girls.
(Or listen to the pronunciation from https://www.pronouncenames.com/search?name=aiken)