Radu may refer to:
People Radu (given name), Romanian masculine given name Radu (surname), Romanian surname Rulers of Wallachia, see Prince Radu of Romania (born 1960), disputed pretender to the former Romanian throne
Other uses Radu (weapon), a Romanian radiological weapon Radu, Iran (disambiguation), multiple places A tributary of the Mraconia in Mehedinți County, Romania A tributary of the Tarcău in Neamț County, Romania Radu Vladislas, a fictional vampire and the primary antagonist of the Subspecies film series
See also Radu Negru (disambiguation) Radu Vodă (disambiguation)
Ruda (disambiguation)