Worldwide, 塚昭一 (塚昭一 
) is a very rare boy's first name. The forename 塚昭一 is characteristic of Eastern Asia, particularly China, where it is an extremely rare boy's name. Very seldom, 塚昭一 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 塚昭一 | China |