Duff is a gender-neutral name and is of Irish origin. It can be used for both girls and boys. It means dark. As a unisex name, this name is popular with both boys and girls. Pronounced as duhf, the name is in the top 1000 of U.S birth chart of the year 1882 and not in the top 1000 of NameChef Most Popular Baby Names.
Duff can be used for both boys and girls.