Pierangelo Sequeri (born 26 December 1944) is an Italian theologian of the Catholic Church who has headed the John Paul II Pontifical Theological Institute for Marriage and Family Sciences since August 2016. He is also a writer, and a composer who wrote hymns and other music. He held posts as professor of philosophy and theology at the Major Seminary in Milan, doctor and musicologist of the Biblioteca Ambrosiana, and lecturer in the aesthetics of the sacred at the Academy of Fine Arts of Brera. He was professor of fundamental theology at the Theological Faculty of Northern Italy, later its dean. He has held several papal appointments.