Surname Sundon (Sundon 
) , in the world, is a very rare cognomen. The last name Sundon is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname, and Thailand. Likewise, Sundon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sundon | Philippines, United States, Thailand, India, Bangladesh |