Family name Jinsuk (진숙 
, Jinsuk 
) , all over the world, is a rare cognomen. The cognomen Jinsuk is characteristic of South Korea, where it is a rare surname, Malaysia, where it is a very rare surname, and Thailand. Not in comparison with a country's population, it is the most numerous in South Korea, China, and Malaysia. Predominantly, Jinsuk is the forename as well as the last name.