O
- (Honghe Hanizu Yizu Zizhizhou) Oule
- (Honghe Hanizu Yizu Zizhizhou) Ouying
- (Nujiang Lisuzu Zizhizhou) Oumula
- (Dêqên Tibetan Autonomous Prefecture) Oumuding
- (Zhaotong Shi) Oujiawan
- (Qujing Shi) Oujiazhai
- (Honghe Hanizu Yizu Zizhizhou) Oujiazhuang
- (Honghe Hanizu Yizu Zizhizhou) Outang
- (Honghe Hanizu Yizu Zizhizhou) Oubi
- (Honghe Hanizu Yizu Zizhizhou) Ouzhu
- (Honghe Hanizu Yizu Zizhizhou) Oude
- (Honghe Hanizu Yizu Zizhizhou) Oupu
- (Honghe Hanizu Yizu Zizhizhou) Oubi
- (Honghe Hanizu Yizu Zizhizhou) Ouhei
- (Lincang Shi) Oujiashan