Surname Молбаев (Молбаев 
, Molbayev) , in the world, is a rare family name. The cognomen Молбаев is characteristic of Kazakhstan, where it is quite a rare surname, Kyrgyzstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Much less frequently, Молбаев is the forename as well as the last name.