Throughout the world, Fliss (Flis 
, Fliss 
) is a rare gender-neutral given name. The first name Fliss is habitual in Hong Kong, where it is a rare feminine name, Tunisia, where it is a rare boy's name, and the United Kingdom, where it is a very rare girly name. Measured by absolute frequency, this name is the most popular in the United Kingdom, Hong Kong, and Australia. Likewise, Fliss is the last name as well as the forename.