Last name Jia Jia (Jia Jia 
) , all around the world, is a rare family name. The cognomen Jia Jia is habitual in Singapore, where it is a rare surname, Malaysia, and Spain, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Malaysia, China, and Singapore. More prevalently, Jia Jia is the forename as well as the last name.