Algeria 441 └ Carthaginian Empire 217 └ Punic Iberia 57 └ Oba 1 Germany 21.583 └ Ober Ost 3 Djibouti 91 └ Djibouti 84 └ Obock Territory (1862-1896) 5 Georgia 383 └ Iberia (ancient) 258 └ Western Hispania Ulterior 49 └ Turdetani people 39 └ Obulco 4 Greece 7.093 └ Greece (ancient) 6.643 └ Thrace 402 └ Odessos 11 Italy 37.242 └ Rome 33.420 └ Roman provinces 1.269 └ Moesia Inferior 91 └ Odessos 6 Greece 7.093 └ Greece (ancient) 6.643 └ Thrace 402 └ Odrysae 1 Italy 37.242 └ Rome 33.420 └ Roman provinces 1.269 └ Africa Proconsularis 24 └ Oea 10 Georgia 383 └ Iberia (ancient) 258 └ Northern Iberia 22 └ Berones people 12 └ Oilaunikos gens 1 Greece 7.093 └ Greece (ancient) 6.643 └ Akarnania 88 └ Oiniadai 1 └ Ionia 436 └ Oinoe 2 └ Macedon 559 └ Oisyme 1 └ Thessaly 533 └ Oitaioi 7 Georgia 383 └ Iberia (ancient) 258 └ Celtiberia 35 └ Pellendones people 6 └ Okalakom 1 Greece 7.093 └ Greece (ancient) 6.643 └ Skythia 44 └ Olbia 26 Georgia 383 └ Iberia (ancient) 258 └ Meseta Plateau 9 └ Olcades people 3 └ City of Erkauika 1 └ Ikalkusken 2 Switzerland 2.570 └ Swiss cantons 2.293 └ Old Swiss Confederacy 31 └ Monetary Union of Uri and Nidwalden 12 └ Schwyz and Unterwalden Uri 19 Georgia 383 └ Iberia (ancient) 258 └ Northern Iberia 22 └ Berones people 12 └ Olkairun 1 Algeria 441 └ Carthaginian Empire 217 └ Punic Iberia 57 └ Olontigi 1 Greece 7.093 └ Greece (ancient) 6.643 └ Macedon 559 └ Olophyxos 2 └ Thessaly 533 └ Olosson 1 └ Crete (ancient) 100 └ Olous 1 └ Elis 121 └ Olympia 120 └ Lycia 49 └ Olympos 2 └ Macedon 559 └ Olynthos 5 Oman 244 └ Dhofar Governorate 6 └ Muscat and Oman 49 └ Oman 189 Mesopotamia 12 └ Omani people 1 Georgia 383 └ Iberia (ancient) 258 └ Northern Iberia 22 └ Vascones people 10 └ Ontikes gens 1 Greece 7.093 └ Greece (ancient) 6.643 └ Troas 158 └ Ophrynion 3 Georgia 383 └ Iberia (ancient) 258 └ Peninsular Northeast 25 └ Sedetani people 12 └ Oppidum of Saltuie 2 South Africa 725 └ South Africa (pre-Union) 36 └ Orange Free State 6 Greece 7.093 └ Greece (ancient) 6.643 └ Arkadia 157 └ Orchomenos of Arcadia 5 └ Boeotia 166 └ Orchomenos of Boeotia 16 Crusader and Christian states in the Eastern Mediterranean 207 └ Frankish Greece 38 └ Order of the knights of Rhodes 11 United States 1.325 └ United States (pre-federal and private/territorial) 143 └ Oregon gold 3 Georgia 383 └ Iberia (ancient) 258 └ Eastern Hispania Ulterior 16 └ Oretani people 14 └ City of Kastilo 11 └ City of Sisapo 1 └ Iltiraka 1 └ Labini 1 └ Peninsular Northeast 25 └ Lobetani people 1 └ Orosi 1 Greece 7.093 └ Greece (ancient) 6.643 └ Thraco-macedonian region 21 └ Orreskioi 3 └ Thrace 402 └ Orthagoreia 2 └ Thessaly 533 └ Orthe 3 └ Caria 221 └ Orthosia 1 Italy 37.242 └ Rome 33.420 └ Roman provinces 1.269 └ Tarraconensis 56 └ Osca 1 └ Osicerda 1 France 8.042 └ Gaul 312 └ Gallia Armorica 87 └ Osismii 8 Georgia 383 └ Iberia (ancient) 258 └ Middle Ebro 80 └ Laietani people 8 └ Oskumken 1 └ Western Hispania Ulterior 49 └ Cunetes 2 └ Osonuba 1 Italy 37.242 └ Rome 33.420 └ Roman provinces 1.269 └ Osroene 2 └ Edessa 2 └ Baetica 77 └ Osset 4 Ostrogothic Kingdom 65 └ City of Ravenna 2 └ City of Rome 5 └ Ostrogothic Kingdom 58 Georgia 383 └ Iberia (ancient) 258 └ Western Hispania Ulterior 49 └ Tartessii people 6 └ Ostur 1