This is a list of sovereign states or polities that existed in the 3rd century BC.

Political entities

Sovereign stateAchaea – Achaean League (from 280 BC)AdenaAetolia – Aetolian LeagueAlbania – Kingdom of AlbaniaArdiaean Kingdom – Ardiaean Illyric Kingdom (from 260 BC)Atropatene – Kingdom of AtropateneBithynia (from 297 BC)Bosporus – Bosporan KingdomCarthageChavín – Chavín Culture (to 250 BC)Chera KingdomChola – Chola EmpireChorrera (to 300 BC)Chu – State of Chu (to 223 BC)Dardanian Kingdom – Dardanian Illyric KingdomDongye – Korean chiefdomEastern Zhou – Kingdom of Eastern Zhou (from 256 BC – 249 BC)Ethiopia – Ethiopian EmpireGojoseon – Ancient Korean KingdomGreco-Bactrian Kingdom (from 256 BC)Han – Han dynasty (from 206 BC)Han – State of Han (to 230 BC)IberiaKush – Kingdom of KushJin State – Jin stateLu – State of Lu (to 256 BC)LycaoniaMacedoniaMaurya EmpireMayaMinyue (from 224 BC)Numidia – Kingdom of Numidia (from 202 BC)ParacasParthian Empire (from 247 BC)Pontus –- Kingdom of Pontus (from 291 BC)Ptolemaic EmpireQi – State of Qi (to 241 BC)Qin – State of QinQin – Qin dynasty (from 221 BC – 206 BC)Roman RepublicSātavāhana Empire (from 230 BC)ScythiaSeleucid EmpireSpartaState of the Scordisci (from c. 278 BC)Upper Egypt (from 206 BC to 186 BC)Văn Lang (to 258 BC)Wei – State of Wei (to 225 BC)Yan – State of Yan (to 222 BC)Zhoa – State of Zhoa (to 222 BC)Zhou – Zhou dynasty (to 256 BC)

See also List of Bronze Age states List of Iron Age states List of Classical Age states List of states during Late Antiquity List of states during the Middle Ages

References