Surname 易斯 (Yisi 
, 易斯 ) , in all the world, is a rare cognomen. The cognomen 易斯 is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Honduras, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it most frequently occurs in China, the Democratic Republic of the Congo, and Malaysia. More frequently, 易斯 is the forename as well as the last name.