Cognomen رياضة (ریاض 
, رياضة, رياضت ) , in the entire world, is quite a rare family name. The cognomen رياضة is characteristic of Iran, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Oman. Not in comparison with a country's population, it is commonest in Iran, Saudi Arabia, and Afghanistan. Very seldom, رياضة is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ریاض | Iraq, Afghanistan, Egypt, Iran, Saudi Arabia |
| رياضت | Iran |