Feast Day: October 15
Memorial of Saint Teresa of Avila (1515-1582), Spanish Discalced Carmelite reformer, mystic, and Doctor of the Church (the first woman so declared, by Saint Paul VI in 1970). Author of the Interior Castle (USCCB Liturgical Calendar 2026).
Saints Commemorated on October 15
From the USCCB 2026 Liturgical Calendar.