Last name Japar (Japar 
, Жапар 
) , in all the world, is a common family name. The cognomen Japar is habitual in Brunei, where it is quite a common surname, Kyrgyzstan, and Malaysia. Not in comparison with a country's population, this name is the most popular in Indonesia, Malaysia, and Kyrgyzstan. Likewise, Japar is the forename as well as the last name.