ACDHIJKMNOPSTUWY O O-dong Obong-gol Och’on-ni Odumul Oeam-dong Oedae-dong Oehyangguk-tong Oemŏk-tong Ogol Ogya-dong Okchŏng Okchŏng-ni Okkŭm Ongjang-dong Ongjom Ongnyu i-dong Ongnyu il-tong Ongnyu sam-dong Ongnyu-gyo Ori-gol Ori-ri Oryong-dong Oryu-dong Osal-li Oya-ri Ŏgu Ŏgujin Ŏktaemul Ŏryong-ni Ŏsŏng-gol Ŏsŏnyŏul Ŏyung-dong Ŏŭn-gol ACDHIJKMNOPSTUWY