Surname チ (Chi 
, Thi , Thị 
) , worldwide, is a widespread family name. The cognomen チ is habitual in Mongolia, where it is a common surname, Myanmar, and Bermuda (explore the name in all countries). Not in comparison with a country's population, it is commonest in China, Myanmar, and Vietnam. Likewise, チ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thi, Chi | China, Vietnam, Malaysia, Mexico, Myanmar |
| Thị | Vietnam, Malaysia, Taiwan, United States, India |
| チ | Japan |