Cognomen Вайдя (Vaidya 
, Вайдя 
) , around the world, is a widespread family name. The last name Вайдя is habitual in Nepal, where it is quite a common surname, United Arab Emirates, and India. Not in comparison with a country's population, it is commonest in India, Nepal, and the United States. Very seldom, Вайдя is the forename as well as the last name.