Cognomen Naydo (Найдо 
, Naydo 
, Наидо ) , in all the world, is a rare last name. The last name Naydo is characteristic of Eastern Europe, particularly Bulgaria, where it is a rare surname, Ukraine, where it is a very rare surname, and Russia. Measured by absolute frequency, it is commonest in India, Russia, and Ukraine. Much less frequently, Naydo is the forename as well as the last name.