Juan Danilo Bangayan Ulep (born June 24, 1962) is a Filipino bishop of the Catholic Church.

He is the fifth and current Bishop-Prelate of Batanes[1] and was elected as the Chairman of the Episcopal Commission on Cultural Heritage of the Church during the 126th Plenary Assembly of the Catholic Bishops' Conference of the Philippines.

He subsequently served as: vicar of the parish of San Vincenzo Ferrer, Solana, Cagayan (1987–1992); administrator of the same parish (1992–1993); pastor of the Holy Guardian Angels parish, Tuao, Cagayan (1993–1999); rector of the San Jacinto minor seminary of Alimannao, Cagayan and director of the commission for vocations and seminaries (1999–2005); pastor of the St. Joseph the Worker parish of San José, Baggao, and episcopal vicar of Alcala (2005–2011).

Finally, from 2011 up to the present, he has served as pastor and rector of the Santo Niño parish and shrine in San Gabriel, Tuguegarao City, Cagayan, director of the biblical apostolate and president of the priests’ assembly of the archdiocese of Tuguegarao.

Co-consecrators were Archbishop Marlo M. Peralta of Nueva Segovia and Bishop Camilo D. Gregorio, Bishop-Prelate Emeritus of Batanes.