Around the world, Calender (Calandre 
, Calendr 
, Calender 
) is a very rare unisex forename. The given name Calender is characteristic of South Africa, where it is a very rare masculine name, the United States, where it is an extremely rare dominantly female, but seldom masculine name, and India, where it is an extremely rare largely male, but uncommonly female name. More frequently, Calender is the last name as well as the forename.