Last name Jadau (Jadau 
) , in the entire world, is a rare cognomen. The family name Jadau is characteristic of Germany, where it is a very rare surname, Nigeria, and France, where it is an extremely rare surname. In absolute terms, it is commonest in India, Nigeria, and Germany. More prevalently, Jadau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jadau | Germany, Mexico, Nigeria, India, France |