Throughout the world, Kidney (Nere 
, Kidney 
, Kidni 
) is quite a rare epicene first name. The first name Kidney is characteristic of Ethiopia, where it is quite a rare male name, Panama, where it is quite a rare female name, and Spain, where it is a rare mostly girly, but infrequently male name. Not in comparison with a country's population, this name is the most popular in Ethiopia, Philippines, and Spain. Also, Kidney is the last name as well as the forename.