O (Nagqu Shi) Ourongduocun (Nagqu Shi) Ourongpucun (Nagqu Shi) Ousucun (Qamdo Shi) Ouding (Ngari Diqu) Oma (Rikaze Diqu) Oiyug (Rikaze Diqu) Oiyug (Shannan Diqu) Oiga (Nagqu Shi) Oukeng (Shannan Diqu) Onggo (Qamdo Shi) Oigarkai (Qamdo Shi) Okai (Nagqu Shi) Omatang 1 2