Phạm Công Tắc (1890–1959) was a Vietnamese leader in the establishment and development of the Caodaism religion, founded in 1926.

[1] He was the head spirit medium and chief administrator of Cadaoism in Tây Ninh.

[2] He became the most influential medium of the religion following the death of Cao Quỳnh Cư in 1929, and was an initiator of the Caodaist canon.

[1] Born to a Catholic father and a Buddhist mother, he attended the Lycée Chasseloup-Laubat in Saigon at age 16.

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