Cognomen Oktai (Октай 
, Октаи , Oktai 
) , globally, is a rare last name. The cognomen Oktai is characteristic of Georgia, where it is a rare surname, Greece, and Kyrgyzstan, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Greece, Russia, and Georgia. More prevalently, Oktai is the forename as well as the last name.