R
- Racehorse River
- Rahu River
- Rai River
- Rainbow River
- Rainy River (Motueka)
- Rainy River (Pelorus)
- Rakaia River
- Rakeahua River
- Rangiora River
- Rangitaiki River
- Rangitane River
- Rangitata River
- Rangitikei River
- Rappahannock River
- Raukokore River
- Rea River
- Red Pyke River
- Red River
- Rees River
- Reikorangi Stream
- Rerewhakaaitu River
- Retaruke River
- Ripia River
- Riwaka River
- Roaring Lion River
- Robertson River
- Robinson River
- Rocky River
- Roding River
- Rogerson River
- Rolleston River
- Rolling River
- Ronga River
- Rooney River
- Rotokakahi River
- Rotokino River
- Rotowhenua River
- Ruakaka River
- Ruakituri River
- Ruakokoputuna River
- Ruamahanga River
- Rubicon River
- Ruera River
- Rum River
- Ryton River
Read more about this topic: List Of Rivers Of New Zealand