Joseph-Marie Trịnh Văn Căn (19 March 1921 – 18 May 1990) was a Vietnamese cardinal of the Catholic Church.

He became a cardinal in 1979, ordained by Pope John Paul II.

He became Archbishop of Hanoi in 1978, after the death of Joseph-Marie Trịnh Như Khuê.

[6] Successor by Paul Joseph Phạm Đình Tụng.

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