Cognomen ญาณสิทธิ์ (Wisdom 
, ญาณสิทธิ์ 
, Yannasit 
) , in all the world, is a common surname. The family name ญาณสิทธิ์ is habitual in Jamaica, where it is quite a common surname, Ghana, and Nigeria. In absolute terms, it most frequently occurs in Nigeria, Ghana, and the United States. Also, ญาณสิทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wisdom | Zimbabwe, Nigeria, United States, Ghana, Zambia |
| ญาณสิทธิ์ | Thailand |
| Yannasit | Malaysia, Thailand |
| Yansit | Thailand, Colombia, Turkey |
Yanasit, Yanasith, Yannasith, Yannasithi, Yannasittha, Yannsit, Yanyasit, and Yanyasith