Cognomen Аня (Anja 
, Ania 
, Anya , among others...) , all around the world, is a common family name. The cognomen Аня is characteristic of Moldova, where it is quite a common surname, Slovenia, and Belarus. Not in comparison with a country's population, the name is most common in Nigeria, Russia, and Indonesia. More frequently, Аня is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Anja | Serbia, Poland, Nigeria, United States, Germany |
| Ania, Anya | Russia, Poland, Nigeria, United States, Germany |
| Аня | Russia, Poland, United States, Belarus, Germany |
| Inya | Belgium, India, Nigeria, Indonesia, United States |
| Áine | Australia, United States, United Kingdom, Ireland, Germany |
| Aanya | India, Nigeria, Australia, United States, United Kingdom |
Ana, Anaïs, Aneta, Anete, Anett, Anetta, Anette, Ann, Anna, Annaig, Anne, Annete, Annett, Annetta, Annette, Anâ, Ganna, Hana, Hania, Hanka, Hanna, Hannah, Hanusia, Ánna, Άνα, Άννα, Ан, Ана, Анаис, Ане, Анет, Анета, Анетт, Анечка, Анн, Анна, Анне, Аннетт, Аннетта, Аннэ, Анэт, Анэта, Анюта, Анюша, Ања, Ганна, Ганнуся, Ен, Ена, Енн, Нюра, Нюта, Нюша, Хана, Ханна, Эн, Энн, אן, אנה, אנט, אניה, האנה, חנה, آن, آنا, آناهیتا, أنيت, انيا, هانا, هنا, আনা, আন্না, แอนนา, ანა, アナ, アニャ, アネット, アン, アンナ, アンヌ, ハナ, ハンナ, 安, 安内特, 安妮, 安娜, 安纳, 安雅, 汉娜, 漢娜, 雅妮, 안나, and 하나