Cognomen Rithvixay (Rithvixay 
) , in all the world, is a very rare last name. The family name Rithvixay is habitual in Northern America, particularly Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Rithvixay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rithvixay | Canada, United States |