Nguyễn Cơ Thạch (15 May 1921 – 10 April 1998; born Phạm Văn Cương) was a Vietnamese revolutionary, diplomat, and politician.

He was Foreign Minister of Vietnam from February 1980 to July 1991.

[2] His time in office coincided with part of Vietnam's transition from an ideology-based alignment to the Soviet bloc towards a pragmatic approach to foreign policy, including the primacy of economic over ideological considerations, integration into ASEAN and closer relations with non-socialist countries.

[2] However, Mr Thạch's efforts to normalize relations with the United States were not successful.

[1] His son Phạm Bình Minh had occupied the same positions held by Thạch, serving as Deputy Prime Minister of Vietnam (2013–2023) and Minister of Foreign Affairs of Vietnam (2011–2021).