Surname Frein (Phanh 
, Fren 
, Freno 
) , worldwide, is quite a rare family name. The surname Frein is habitual in Laos, where it is quite a rare surname, Israel, and Lebanon. Not in comparison with a country's population, it is the most numerous in Indonesia, the United States, and Laos. Also, Frein is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phanh | United States, Vietnam, France, Laos, Canada |
| Fren | United States, France, Indonesia, Germany, Italy |
| Freno | United States, France, Philippines, Germany, Italy |
| Frein | United States, France, Germany, Italy, Brazil |
|
eric frein American fugitive, US (b. 1983) |
|
| brigid curtin frein (b. 1957) |
|
|
| michael frein DE (b. 1961) |
|
|
| jeffrey d frein researcher |
|
|
| yannick frein Dr.-Ing. Institut National Polytechnique de Grenoble 1983 |
|
|
| tom frein college basketball player (1949–1950) Saint Joseph's |
|
|
| barthélemy frein |
|