All over the world, Nun (Nu 
, Nun 
, Нун 
) is a common mostly feminine, but seldom masculine first name. The first name Nun is characteristic of Mongolia, where it is a prevalent primarily feminine, but very infrequently boy's name, Macao, where it is quite a common girly name, and Indonesia, where it is quite a rare epicene name. Not in comparison with a country's population, it is commonest in Mongolia, India, and Indonesia. Likewise, Nun is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nu | China, Nigeria, India, Myanmar, Mongolia |
| Nun | Indonesia, China, Nigeria, India, Myanmar |
| Нун | Kazakhstan, Ukraine, Russia |
| นุญ | Thailand |
En, Nana, Naș, Negun, Niño, Noi, Nom, Non, Nonna, Nonne, Nunk, Nunne, Nuon, Nuñ, Nùn, Nùñ, Nún, Núñ, Nûn, Nōn, Nưn, Nủn, Papa, Un, Ñúñ, Ñûñ, Ñŭñ, نن, نون, ชี, นะนุ่น, นุน, นุอ่อน, นุ่น, นุ่นชูผล, นุ่นหนู, นุ่นหรน, นุ้น, นูญ, นูน, นูล, น้องนุ่น, หนุน, หนุ่น, อนุณ, อนุน, อนุอ้น, อนุ่น, อักษรนันท์, อ่อนอุ่น,
Nun is also a name for the fictitious and mythical characters: Nun Seigen , the character in Kabuki, Sumidagawa Hana no Goshozome and Nun , the human biblical character, Exodus.