Surname Rithish (Rithish 
) , all around the world, is a very rare family name. The cognomen Rithish is characteristic of Singapore, where it is a rare surname, Saudi Arabia, and India, where it is an extremely rare surname. More prevalently, Rithish is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rithish | Australia, India, Singapore, United States, Saudi Arabia |