Reilly is a gender-neutral name and is of Irish origin. It can be used for both girls and boys. It means descendant of Roghallach. As a unisex name, this name is popular with both boys and girls. The name is in the top 1000 of U.S birth chart of the year 2008 and not in the top 1000 of NameChef Most Popular Baby Names.
Reilly can be used for both boys and girls.