Cognomen Кайлаш (Kailash 
, Кайлаш 
) , in all the world, is a common family name. The cognomen Кайлаш is characteristic of Mauritius, where it is quite a common surname, Nepal, where it is quite a rare surname, and Qatar. Not in comparison with a country's population, the name is most common in India, Nepal, and Saudi Arabia. Much more frequently, Кайлаш is the forename as well as the last name.