Cognomen ประนอ (Prano 
, ประนอ 
) , globally, is a rare surname. The surname ประนอ is habitual in Sweden, where it is a rare surname, Italy, and Indonesia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Indonesia, the United States, and Italy. More frequently, ประนอ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prano | India, Italy, Spain, United States, Indonesia |
| ประนอ | Thailand |