Family name ジャスティン (Justin 
, Justine , Justyn 
) , around the globe, is a widespread surname. The last name ジャスティン is characteristic of Saint Lucia, where it is a common surname, Brunei, where it is quite a common surname, and Tanzania (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Sub-Saharan Africa, particularly Nigeria, Tanzania, and Cameroon. More prevalently, ジャスティン is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Justin, Justine | Nigeria, Democratic Republic of the Congo, Tanzania, United States, Myanmar |
| Justyn | Nigeria, Australia, France, United States, India |
| ジャスティン | Japan |
|
金城ジャスティン俊樹 Japanese association football player, JP (b. 1997) |
|
| 冨森ジャスティン Australian actor, JP (b. 1989) |
|