Surname Magdau (Magdau 
) , around the globe, is a rare cognomen. The last name Magdau is habitual in Romania, where it is quite a rare surname, Spain, where it is a very rare surname, and Italy, where it is an extremely rare surname. Much less frequently, Magdau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Magdau | Spain, Italy, United States, Romania, Germany |