Cognomen 一場 (Ichiba 
, 一場 
) , globally, is a rare surname. The surname 一場 is characteristic of Brazil, where it is a very rare surname, Thailand, and the United States, where it is an extremely rare surname. Likewise, 一場 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ichiba | Japan, Thailand, United States, India, Brazil |
| 一場 | China |
| 一場千秋 Japanese tarento, JP (b. 1981) |
|
|
| 一場麻美 Japanese screenwriter, JP (b. 1982) |
|