Last name สินรา (Sinara 
, สินรา 
, Sinra 
) , all around the world, is a rare surname. The family name สินรา is habitual in Uruguay, where it is a rare surname, Georgia, and Thailand. Measured by absolute frequency, it is the most numerous in Indonesia, Thailand, and Egypt. More prevalently, สินรา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinara | Egypt, Brazil, United States, India, Indonesia |
| สินรา | Thailand |
| Sinra | Philippines, Thailand, United States, India, Indonesia |