Around the world, Cosna (Cosna 
) is a rare female first name. The forename Cosna is habitual in South-eastern Asia, particularly Philippines, where it is a rare female name. Much less frequently, Cosna is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cosna | Romania, Spain, Philippines, United States, India |
Ali, Mingka, Sultan, Amirel, Ameril, Ampuan, Claren, Barani, Bungca, Dimaro, Domiar, Domaub, Layson, Lerado, Tomara, Maruhom, Manaros, Minanga, Bagayan, Ibrahim, Maca-Agal, Solaiman, Maurac, Abdullah, Jacob, Buzar, Mama, Suma, Ango, Anto, Anta, Amer, Atab, Dira, Omar, Umpa, Marao, Menor, Sulog, Anori, Abbas, Ampao, Casan, Balto, Basar, Batao, Buale, Pandi, and Tomambiling