Miguel de Poblete Casasola or Miguel Millán de Poblete (1602 – December 8, 1667) was a Roman Catholic prelate who served as Bishop of Nicaragua (1640) and Archbishop of Manila (1649âÂÂ1667).
Miguel de Poblete Casasola was born in Mexico City. In 1640, he was appointed Bishop of Nicaragua but resigned before he could be consecrated. On May 20, 1648, Pope Innocent X appointed him Archbishop of Manila. On January 1, 1649, he was confirmed to the position and on September 9, 1650, he was consecrated bishop by Juan de Mañozca y Zamora, Archbishop of Mexico. He served as Archbishop of Manila until his death on December 8, 1667. While bishop, he was the Principal Consecrator of Nicolás de la Torre Muñoz, Bishop of Santiago de Cuba (1651); and Rodrigo Cárdenas, Bishop of Nueva Segovia (1651).
His nephew was José Millán de Poblete, Bishop-elect of Nueva Segovia.