Cognomen Яш (Yash 
, Яш 
) , across the world, is a common surname. The cognomen Яш is characteristic of Mauritius, where it is quite a common surname, Maldives, where it is quite a rare surname, and Qatar. Not in comparison with a country's population, it most frequently occurs in India, Bangladesh, and Mauritius. More prevalently, Яш is the forename as well as the last name.