Last name Dunstin (Dunstin 
) , in all the world, is an extremely rare surname. The last name Dunstin is characteristic of New Zealand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Dunstin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dunstin | Brazil, Malaysia, New Zealand, United States, South Africa |