Daniel Tji Hak Soun (September 9, 1921 – March 12, 1993) was a bishop of the Roman Catholic Diocese of Wonju.
Daniel Tji Hak Soun was ordained a priest on December 15, 1952.
On March 22, 1965, Pope Paul VI appointed him Bishop of Wonju.
[1] Tji was associated with Kim Chi-ha and was arrested in 1974 alongside five other priests and a nun over allegations of providing financial support to opponents of the government of Park Chung Hee and sentenced to death.
He was sympathetic to the April Revolution and was a leader of the urban poor and supported nonviolent resistance to the regime.