Surname A Thomas (A Thomas 
) , in the world, is a very rare last name. The family name A Thomas is habitual in Malaysia, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and China. Measured by absolute frequency, the name is most common in Malaysia, China, and India. Likewise, A Thomas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| A Thomas | Canada, India, Nigeria, Malaysia, China |