Last name Kunai (Kunai 
, Кунай 
) , globally, is quite a common cognomen. The family name Kunai is habitual in Papua New Guinea, where it is quite a rare surname, Belarus, and Georgia, where it is a rare surname. In absolute terms, the name is most common in India, Papua New Guinea, and Belarus. Likewise, Kunai is the forename as well as the last name.