Family name Янгянг (Yangyang 
, Янгянг 
, Jangjang 
) , across the world, is quite a rare cognomen. The surname Янгянг is characteristic of Philippines, where it is quite a rare surname, Kuwait, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, it is commonest in Philippines, China, and Indonesia. More frequently, Янгянг is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yangyang | Taiwan, China, Indonesia, United States, Philippines |
| Янгянг | Russia |
| Jangjang | Philippines, South Korea, India |
| Iangiang | Myanmar, Georgia |