A list of rivers of North Rhine-Westphalia, Germany:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
- Obernau
- Oberscheider Bach
- Oberwiesengraben
- Odeborn
- Oefter Bach
- Oesber Bach
- Oese
- Oetternbach
- ÃÂlbach, tributary of the Berkel
- ÃÂlbach, tributary of the Wapelbach
- Olef
- Olfe, tributary of the Nuhne
- Olfe, tributary of the Werse
- Olligsbach
- Olpe, tributary of the Bigge
- Olpe, tributary of the Hundem
- Omerbach
- Ophover Mühlenbach
- Orke
- Orpe
- ÃÂse
- ÃÂsper
- Ossenbeck
- Ostbach, tributary of the Else
- Ostbach, tributary of the Emscher
- Ostscheider Bach
- Otterbach, tributary of the Inde
- Otterbach, tributary of the Weser
- Ottersbach
P
Q
R
S
T
U
V
W
Z