Katniss is a female given name and is of American origin. It means pure. The name is currently in the top 250 of NameChef Most Popular Baby Names and not in the top 1000 of U.S birth chart.
Katniss Everdeen, is the main character of The Hunger Games trilogy by Suzanne Collins, whose name comes from a plant of the genus Sagittaria.
Katniss is a girl's name.