Family name Джанис (Janis 
, Djanis 
, Janyse 
) , around the globe, is a common last name. The cognomen Джанис is habitual in Latvia, where it is quite a rare surname, Slovakia, and Czechia. Measured by absolute frequency, the name is most common in the United States, Indonesia, and Mexico. More frequently, Джанис is the forename as well as the last name.