Cognomen Чёткин (Чёткин 
) , in all the world, is an extremely rare last name. The surname Чёткин is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Чёткин | Russia |
| чёткин, михаил васильевич Physicist (1932-2017), RU (b. 1932) |
|