Last name Tsubai (Tsubai 
) , around the world, is a very rare cognomen. The family name Tsubai is habitual in Georgia, where it is a very rare surname, Israel, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in the United Kingdom, the United States, and South Africa. Very seldom, Tsubai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tsubai | United Kingdom, South Africa, Georgia, United States, Israel |
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