Radbuza
The Radbuza is a river in the Czech Republic, the secondary source river of the Berounka River. It flows through the Plzeň Region. It is long, making it the 17th longest river in the Czech Republic.
Etymology
The name is derived from the personal Slavic name Radbud. The land through which the river flows once belonged to someone of that name.Characteristic
The Radbuza originates in the territory of Rybník in the Upper Palatine Forest at an elevation of and flows to Plzeň, where it joins the Mže at an elevation of and together they form the Berounka. It is long, making it the 17th longest river in the Czech Republic. Its drainage basin has an area of, of which is in Germany.The longest tributaries of the Radbuza are:
| Tributary | Length | River km | Side |
| Úhlava | 104.0 | 4.6 | right |
| Merklínka | 39.4 | 34.8 | right |
| Zubřina | 33.2 | 53.0 | right |
| Černý potok | 28.3 | 66.9 | right |
| Luční potok | 16.9 | 9.1 | left |