Cognomen 颐炅 (颐炅 
) , in all the world, is a very rare last name. The surname 颐炅 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 颐炅 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 颐炅 | China |