Baltasar de los Reyes, O.S.H., (1606 – 5 May 1673) was a Roman Catholic prelate who served as Bishop of Coria (1673) and Bishop of Orense (1668–1673).^[1]

Baltasar de los Reyes was born in Riaza, Spain, in 1606 and ordained a priest in the Order of Saint Jerome.^[1] On 30 January 1668, he was appointed during the papacy of Pope Clement IX as Bishop of Ourense.^[1] On 6 May 1668, he was consecrated bishop by Vitaliano Visconti, Titular Archbishop of Ephesus, with Egidio Colonna (patriarch), Titular Archbishop of Amasea, and Francisco de Rojas-Borja y Artés, Bishop of Ávila, serving as co-consecrators.^[1] On 30 January 1673, he was appointed during the papacy of Pope Clement X as Bishop of Coria.^[1] He served as Bishop of Coria until his death on 5 May 1673.^[1] Don Diego Ros de Medrano succeeded him as the Bishop of Ourense on 29 May 1673.

• Cheney, David M. "Diocese of Coria-Cáceres". Catholic-Hierarchy.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{[self-published]}
• Chow, Gabriel. "Diocese of Coria-Caceres (Spain)". GCatholic.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{[self-published]}
• Cheney, David M. "Diocese of Orense". Catholic-Hierarchy.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{[self-published]}
• Chow, Gabriel. "Diocese of Orense (Spain)". GCatholic.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{[self-published]}