Diplomatic relations were established on 16 September 1975.
In Papua New Guinea, Canada is represented by the High Commission of Canada in Australia.
Papua New Guinea has a consulate in Toronto, and is officially represented in Canada by an Embassy in Washington, D.C., U.S.A.
Canada enjoys a close and friendly relationship with Papua New Guinea. Bilateral relations are cordial and enhanced by a shared membership in international organisations such as the Commonwealth, the Asia-Pacific Economic Cooperation and the United Nations. Canada and Papua New Guinea share interests with respect to fisheries and climate change and are both party to a number of international environmental and fisheries agreements such as the Kyoto Protocol, the United Nations Convention on the Law of the Sea and the United Nations Fish Stocks Agreement. Canada is also a Dialogue Partner of the Pacific Islands Forum to which Papua New Guinea belongs.
Papua New Guinea is inhabited by hundreds of indigenous groups who speak as many languages. The landscape is constituted mostly of mountains with lowlands and dense rainforests in coastal areas, and it is surrounded by coral reefs.
With regard to development assistance, Canada supports community-based projects in Papua New Guinea through the Canada Fund for Local Initiatives administered by the High Commission of Canada in Australia. Canada also provides long-term institutional support to multilateral and global organizations that are present in the Pacific.
Canada's trade relations with Papua New Guinea are managed by the Trade Commissioner Service at the High Commission of Canada in Australia.. In 2010, Canada’s bilateral merchandise trade with Papua New Guinea totalled $42.0 million, with $40.3 million in exports and $1.6 million in imports. The main Canadian exports to PNG in 2010 involved aircrafts and machinery. Imports in 2010 from PNG comprised mainly of coffee, spices and tea.