Cognomen Sumaher (Sumaher 
) , around the globe, is an extremely rare last name. The cognomen Sumaher is habitual in Estonia, where it is a rare surname, Germany, where it is an extremely rare surname, and Canada. Likewise, Sumaher is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumaher | Germany, Spain, Estonia, India, Brazil |