Cognomen ทรัสต์ (Trust 
, ทรัสต์ 
) , around the world, is quite a common last name. The cognomen ทรัสต์ is habitual in South Africa, where it is quite a rare surname, New Zealand, and Denmark. Measured by absolute frequency, it is the most numerous in Nigeria, South Africa, and the United Kingdom. Also, ทรัสต์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trust | United Kingdom, Nigeria, South Africa, Zimbabwe, Egypt |
| ทรัสต์ | Thailand |