Cognomen Реч (Rech 
, Retch 
, Реч 
) , worldwide, is a common family name. The surname Реч is habitual in Luxembourg, where it is quite a rare surname, Brazil, and Germany. Not in comparison with a country's population, it is commonest in Brazil, Germany, and Italy. Likewise, Реч is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rech | Germany, France, Italy, Brazil, Democratic Republic of the Congo |
| Retch | Germany, France, Spain, Brazil, United States |
| Реч | Russia, Ukraine |
| Retzsch | United States, Germany |