Government & politics — Papua New Guinea
Government structure, legal system, citizenship, and international relations.
Profile updated 2026-06-02
⚡ Government & politics at a glance
Government structure, legal system, citizenship, and international relations. Key figure for Papua New Guinea: Independent State of Papua New Guinea
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Identity & names
- Full Country Name
Independent State of Papua New Guinea
- Country Name
Papua New Guinea
- Local - Short
Papuaniugini
- Abbreviation
PNG
- Former Name
German New Guinea, British New Guinea, Territory of Papua and New Guinea
- Etymology- history of name
- Independence
16 September 1975 (from the Australia-administered UN trusteeship)
- National Holiday
Independence Day, 16 September (1975)
Political system
- Government Type
parliamentary democracy under a constitutional monarchy; a Commonwealth realm
- Constitution
- Legal System:
mixed legal system of English common law and customary law
- Executive Branch:
- Legislative Branch:
- Judicial Branch:
- Regions or States:
- Political Parties and Leaders:
- Suffrage:
18 years of age; universal
- Citizenship Criteria:
Capital & time
- Capital Name
Port Moresby
- Capital - geographic coordinate
9 27 S, 147 11 E
- Capital Time Difference
UTC+10 (15 hours ahead of Washington, DC, during Standard Time) time zone note: Papua New Guinea has two time zones, including Bougainville (UTC+11)
International role
- International Organization Participation:
- International Law Organization Participation:
has not submitted an ICJ jurisdiction declaration; non-party state to the ICCt
- Diplomatic Representation from US:
- Diplomatic Representation in the US:






