Last name กุ (Ku 
, กุ 
) , in all the world, is a widespread family name. The family name กุ is characteristic of Macao, where it is a common surname, Hong Kong, where it is quite a common surname, and Bermuda (explore the name in all countries). Measured by absolute frequency, it is commonest in India, Mexico, and China. More prevalently, กุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ku | China, Mexico, Indonesia, India, Myanmar |
| กุ | Thailand |