Ratified conventions by Papua New Guinea
- 1976 - 1st Geneva Convention for the Amelioration of the Condition of the Wounded and Sick in Armed Forces in the Field
- 1976 - 2nd Geneva Convention For the Amelioration of the Condition of Wounded, Sick and Shipwrecked Members of Armed Forces at Sea
- 1976 - 3rd Geneva Convention Relative to the Treatment of Prisoners of War
- 1976 - 4th Geneva Convention relative to the protection of civilian persons in time of war
- 1982 - International Convention of the Elimination of All Forms of Racial Discrimination
- 1986 - Convention Relating to the Status of Refugees
- 1986 - Protocol Relating to the Status of Refugees
- 1986 - Convention on the Prevention and Punishment of the Crime of Genocide
- 1993 - Additional Protocol Relating to the Protection of Victims of Non-International Armed Conflicts
- 1993 - Convention on the Prohibition of the development, production, stockpilling and use of chemical weapons
- 1995 - Convention on the Elimination of all Forms of Discrimination against Women
- 2004 - Convention on the Prohibition of the Use, Stockpilling, production and transfer and antipersonnel mines
- 2008 - International Covenant on Economic, Social and Cultural Rights
- 2008 - International Covenant on Civil and Political Rights