Andriy Ishchak (Ukrainian: Андрі́й Іща́к; 23 September 1887 - 26 June 1941) was a Ukrainian Greek Catholic priest and martyr. Ishchak was born in the city of Mykolayiv in the Lviv Oblast. He studied theology at universities in Lviv (Ukraine) and Innsbruck (Austria). He received his doctorate of theology from the University of Innsbruck in 1914 and was ordained to the priesthood. He taught Dogmatic Theology and Canon Law at the Lviv Theological Academy from 1928, while serving as priest in the village of Sykhiv. Ivan Kuchytskyi recounts the events of Ishchak's death in his own testimony.