Ivan Devčić (born 1 January 1948) is a Croatian prelate of the Catholic Church and university professor of philosophy.

Devčić started his higher education at the Rijeka branch of the Zagreb Catholic Faculty of Theology, and finished it at the Pontifical Gregorian University in Rome.

On Christmas 2013, when the Croatian society was deeply divided on the issue of the 2013 marriage referendum in which it was proposed to change the constitution so it would define marriage only as a union between a man and a woman, Archbishop Devčić held a Mass and stated in his homily: "God isn't legitimized only by unity but also by diversity and thus gives us one Gospel in four different forms.

"This Mass was attended by Prime Minister Zoran Milanović, who has thus made a precedent by becoming the first prime minister to visit Rijeka Cathedral on Christmas because all of his predecessors traditionally attended Holy Mass held at the Zagreb Cathedral.

This was interpreted as Milanović's protest against the Archbishop of Zagreb Josip Bozanić, who intervened in the political campaign by openly urging people to vote for changing the constitution, as well as because Bozanić criticized Milanović's government in his homily on 2012 Christmas Mass for introducing sex education in schools.