Obongsan may refer to:
Obongsan (Boseong), mountain of Jeollanam-do, southwestern South Korea Obongsan (Gyeongju), mountain of Gyeongsangbuk-do, eastern South Korea Obongsan (Haman/Jinju), mountain of Gyeongsangnam-do, southeastern South Korea Obongsan (Hoengseong/Pyeongchang), mountain of Gangwon-do, South Korea Obongsan (Hwacheon/Chuncheon), mountain in the county of Hwacheon, Gangwon-do in South Korea Obongsan (North Jeolla), mountain of Jeollabuk-do, western South Korea Obongsan (Sangju), mountain of Gyeongsangbuk-do, eastern South Korea Obongsan (South Chungcheong), mountain of Chungcheongnam-do, western South Korea Obongsan (Wondo), mountain of Jeollanam-do, southwestern South Korea Obongsan (Yangsan), mountain of Gyeongsangnam-do, southeastern South Korea Obongsan (Chagang), mountain of Chagang-do in North Korea Obongsan (Kosong–Kumgang), mountain of Kangwon-do in North Korea Obongsan (South Hamgyong), mountain of Hamgyongnam-do in North Korea
See also Bongshang Pongsan Yebongsan