Family name Кугаи (Kugai 
, Кугаи ) , worldwide, is a very rare last name. The cognomen Кугаи is characteristic of Georgia, where it is a very rare surname, Russia, where it is an extremely rare surname, and Malaysia. In absolute terms, the name is most common in Russia, Germany, and the United States. Likewise, Кугаи is the forename as well as the last name.