The Roman Catholic Diocese of Tulcán () is a diocese located in the city of Tulcán in the ecclesiastical province of Quito in Ecuador.
Ordinaries Luis Clemente de la Vega Rodriguez (17 Mar 1965 – 4 May 1987) Germán Trajano Pavón Puente (28 Jan 1989 – 19 Apr 2001), appointed Bishop of Ambato Luis Antonio Sánchez Armijos, S.D.B. (15 Jun 2002 – 22 Feb 2010), appointed Bishop of Machala Fausto Gaibor García (4 May 2011 – 4 Jun 2021) Luis Bernardino Núñez Villacís (5 Jul 2021 – 6 Aug 2021; did not take effect) Carlos Washington Yépez Naranjo (16 May 2023 – present)
Sources GCatholic.org Catholic Hierarchy