Huỳnh Thúc Kháng (chữ Hán: 黃叔抗; 1 October 1876 – 21 April 1947), courtesy name Giới Sanh, pen name Mính Viên (also written as Minh Viên), also known as Cụ Huỳnh (lit: 'Great-grandfather' Huỳnh), was a Vietnamese anti-colonial activist, statesman and journalist, most notably serving as Acting President of Vietnam and President of the Annamese House of Representatives.

Along with Phan Châu Trinh and Trần Quý Cáp, Huỳnh led the Duy Tân movement [vi], for which he was imprisoned in Côn Đảo island by the French colonial authority from 1908 to 1919.

In 1927, he founded the Huế-based Tiếng Dân newspaper, which gained prominence among the Vietnamese intelligentsia at the time but was shut down by the colonial authority in 1943.

[1] Following the August Revolution, he participated in the Việt Minh-led coalition government as an independent and was appointed Minister of Home Affairs on 2 March 1946.

Though he died on 21 April 1947 under suspicious circumstances,[2] it was most possibly from a fatal illness he had contracted during his time there and was buried atop the Thiên Ấn mountain [vi], a prominent landmark of Quảng Ngãi.