Family name 杰卡 (Jacka 
, 杰卡 
) , in the entire world, is quite a rare surname. The cognomen 杰卡 is characteristic of Australia, where it is quite a rare surname, New Zealand, and Czechia, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Australia, the United States, and Tanzania. Likewise, 杰卡 is the forename as well as the last name.