Last name สิงห์อยู่ (Singyu 
, สิงห์อยู่) , all around the world, is a rare cognomen. The surname สิงห์อยู่ is habitual in Taiwan, where it is a rare surname, Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, สิงห์อยู่ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Singyu | Hong Kong, Taiwan, Thailand, United States, India |