- Source: Radau (disambiguation)
Radau is a river in Lower Saxony, Germany.
Radau may also refer to:
Rodolphe Radau (1835–1911), German astronomer and mathematician
Radau (crater), impact crater on Mars
Radawie (German Radau), a village in southwestern Poland
"Radau", a song by God Is an Astronaut on the album Far from Refuge