R
- (Upper Siang) Ramsing
- (West Kameng) Rahung
- (Upper Subansiri) Rajja
- (Lower Subansiri) Reru
- (East Kameng) Riāng
- (Anjaw) Rungarh
- (East Siang) Rotung
- (East Siang) Riu
- (East Siang) Riga
- (Kurung Kumey) Riangchi
- (East Kameng) Rang
- (West Siang) Rangku
- (Upper Siang) Rikor
- (West Kameng) Rupa
- (Lower Dibang Valley) Roing
- (Papum Pare) Raddar
- (East Kameng) Raga