Last name Киря (Kirya 
, Kiria 
, Киря 
) , in the entire world, is quite a common cognomen. The cognomen Киря is habitual in Tanzania, where it is quite a rare surname, Uganda, and Georgia. In absolute terms, it is the most numerous in Sub-Saharan Africa, particularly Tanzania, Uganda, and Kenya. Also, Киря is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kirya | Ethiopia, Democratic Republic of the Congo, Brazil, Uganda, India |
| Kiria | Ethiopia, Kenya, Brazil, Tanzania, India |
| Киря | Kazakhstan, Russia |
| Kyrya | Australia, Brazil, United States |
Chiril, Ciril, Cirill, Cirillo, Cirilo, Cyriel, Cyril, Cyrill, Cyrille, Cyrillus, Cyryl, Kiril, Kirill, Kirils, Kiryl, Kyril, Kyrill, Kyrillos, Kyrja, Kyrylo, Кирил, Кирилл, Кириллос, Кирило, Кирюша, Кірыл, Сирил, Сирило, Сириль, Сіріл, Цирил, Чирилло, سيريل, كيريل, ซีริล, and 西羅