Marko Veselica (January 9, 1936 – February 17, 2017 in Zagreb) was a Croatian politician, economist and university professor.
During the Croatian Spring, Marko Veselica developed a reputation of being a Croatian nationalist. He was close to Ivan Milas. As a prominent Croatian dissident his Croatian nationalist views brought him into conflict with the Communist authorities of Yugoslavia. In 1981 he was arrested on suspicion of "antistate activities", In 1983 he was an Amnesty International prisoner of conscience.
In 1990, he became leader of the newly formed Croatian Democratic Party (HDS). Following the merger of the HDS and the Croatian Christian Democratic Party (HKDS) he became chairman (1992–2001) of the Croatian Christian Democratic Union HKDU.
He died on 17 February 2017 at morning in Fran Mihaljević hospital in Zagreb.