Cognomen จาร (Chan 
, จาร 
) , around the globe, is a prevalent surname. The cognomen จาร is characteristic of Hong Kong, where it is a prevalent surname, Macao, and Bermuda (explore the name in all countries). Not in comparison with a country's population, it is commonest in Hong Kong, Myanmar, and China. Likewise, จาร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chan | China, Malaysia, Hong Kong, Mexico, Myanmar |
| จาร | Thailand |