=Okpo=, Burma. 18N. 96E. 67
=Okushiri Island=, Japan. 42N. 140E. 88
=Okushiri Strait=, Japan. 42N. 140E. 88
=Old Kedah=, Malay Peninsula. 6N. 100E. 68
=Olekima, River=, Siberia. 60N. 121E. 95
=Olekminsk=, Siberia. 60N. 120E. 95
=Olele=, East Indies. 5N. 95E. 74
=Olenek River=, Siberia. 68N. 118E. 94
=Olgantorsky, Cape=, Siberia. 60N. 170E. 95
=Olives, Mount of=, Palestine. 32N. 35E. 12
=Oman=, Arabia. 23N. 57E. 45
=Oman, Gulf of=, Arabia. 25N. 58E. 45
=Olympus Mt.=, Asia Minor. 40N. 30E. 46
=Ombay Island=, East Indies. 8S. 125E. 75
=Omerkot=, Punjab. 29N. 70E. 59
=Ominato=, Japan. 41N. 141E. 88
=Omogun, River=, Siberia. 52N. 136E. 95
=Omol hotun=, Mongolia. 44N. 115E. 83
=Omon, River=, Siberia. 52N. 114E. 95
=O-mo-so=, Manchuria. 44N. 128E. 90
[*]=Omsk=, Asiatic Russia. 55N. 74E. 94
=Omuta=, Japan. 33N. 131E. 89
=Ongin=, Inner Mongolia. 39N. 108E. 82
=Ongole=, Madras. 16N. 80E. 62
=Onim=, East Indies. 3S. 133E. 75
=Onimechi=, Japan. 34N. 133E. 91
=Onmaye Cape=, Japan. 35N. 138E. 91
=Ono=, Palestine. 32N. 35E. 12
=On-song=, Korea. 43N. 130E. 90
[*]=Ophir, Mount=, Malay Pen. 2N. 103E. 69
=Ordos=, Inner Mongolia. 40N. 109E. 82
=Orissa=, Bengal. 21N. 86E. 61
[*]=Ormuz Island=, Persia. 27N. 56E. 45
=Ormuz Strait=, Persia. 26N. 57E. 45
=Orr-tau-ho R.=, Manchuria. 43N. 127E. 90
[*]=Osaka=, Japan. 35N. 136E. 91
=Oshima=, Japan. 35N. 139E. 91
=Oshima Island=, Japan. 41N. 140E. 88
=Osmanabad=, Haidarabad. 18N. 76E. 62
=Osmanjik=, Asia Minor. 41N. 35E. 46
=Ota=, Manchuria. 45N. 129E. 90
=Otaru=, Japan. 43N. 141E. 88
=O-to-cheng=, Manchuria. 43N. 128E. 90
=Ot-po=, Burma. 18N. 95E. 67
=Otsu=, Japan. 35N. 136E. 91
=Ottok=, Inner Mongolia. 39N. 108E. 82
=Oudh=, United Provinces. 27N. 83E. 60
=Oukin Island=, Lu-Chu Is. 28N. 129E. 89
=Owajima=, Japan. 33N. 133E. 91
=Owari=, Japan. 35N. 137E. 91