Phan Wannamethee (born 30 January 1923) is a Thai diplomat who served as the sixth secretary-general of ASEAN between 1984 and 1986.
Phan Wannamethee graduated from Oberlin College with a bachelor's degree in history and a master's degree in international relations from the University of California, Berkeley.
As Secretary-General of the Association of Southeast Asian Nations (ASEAN), he played an important role and is behind the draft of the Treaty of Amity and Cooperation in Southeast Asia.
[1] Phan was former Secretary-General of the Thai Red Cross Society until resigning from the position in 2021.
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