Surname 音吉 (Otokichi 
, 音吉 
) , in the world, is a rare last name. The cognomen 音吉 is characteristic of Japan, where it is a rare surname, China, where it is an extremely rare surname, and Brazil. Much more prevalently, 音吉 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otokichi | Brazil, Japan |
| 音吉 | China |