Family name Fanzlau (Fanzlau 
) , globally, is a very rare last name. The surname Fanzlau is habitual in Austria, where it is a rare surname, Brazil, where it is a very rare surname, and Germany, where it is an extremely rare surname. Also, Fanzlau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fanzlau | Brazil, Poland, Austria, Germany |