Indonesia–Japan relations
bilateral relations between Indonesia and Japan

Indonesia and Japan established diplomatic relations in 1958. Both are two Asian nations that share historical, economic, and political ties. Both nations went through a difficult period in World War II when the then Dutch East Indies was occupied by the Imperial Japanese Army for three-and-a-half years. Japan is a major trading partner for Indonesia. Japan is Indonesia's largest export partner and also a major donor of development aid to Indonesia through Japan International Cooperation Agency. Indonesia is a vital supplier of natural resources such as liquefied natural gas to Japan. Today in Indonesia, there are about 11,000 Japanese expatriates whereas in Japan, there are approximately 24,000 Indonesian nationals working and training.
Indonesia has an embassy in Tokyo and a consulate in Osaka. Japan has an embassy in Jakarta, consulate-general in Surabaya, and consulates in Medan, Denpasar and Makassar.
History
The linguist Ann Kumar (2009) proposed that some Austronesians migrated to Japan, possibly an elite-group from Java, and created the Japanese-hierarchical society and identifies 82 plausible cognates between Austronesian and Japanese.
The public source identifies “Indonesia–Japan relations” as bilateral relations between Indonesia and Japan. This brief keeps that definition visible, then builds a research path around Indonesia, Japan and relations.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q4981905. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1958 and 2009.
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This entry incorporates text from “Indonesia–Japan relations” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.