Family name ปิยะนิตย์ (ปิยะนิตย์ 
) , in the world, is a very rare cognomen. The surname ปิยะนิตย์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, ปิยะนิตย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ปิยะนิตย์ | Thailand |