Cognomen Zetan (泽潭 
, Zetan 
) , all around the world, is a rare family name. The last name Zetan is characteristic of Israel, where it is a very rare surname, China, where it is an extremely rare surname, and Nigeria. Not in comparison with a country's population, it is commonest in China, Nigeria, and India. More prevalently, Zetan is the forename as well as the last name.