The Feast of the Most Holy Name of the Blessed Virgin Mary is an optional memorial celebrated in the liturgical calendar of the Catholic Church on 12 September. It has been a universal Roman Rite feast since 1684, when Pope Innocent XI included it in the General Roman Calendar to commemorate the victory at the Battle of Vienna in 1683. It was initially removed from the current Church calendar in the liturgical reform following Vatican II, but it was restored by Pope John Paul II in 2002 along with the Feast of the Holy Name of Jesus in January.

The Feast of the Most Holy Name of the Blessed Virgin Mary is an optional memorial celebrated in the liturgical calendar of the Catholic Church on 12 September. It has been a universal Roman Rite feast since 1684, when Pope Innocent XI included it in the General Roman Calendar to commemorate the victory at the Battle of Vienna in 1683. It was initially removed from the current Church calendar in the liturgical reform following Vatican II, but it was restored by Pope John Paul II in 2002 along with the Feast of the Holy Name of Jesus in January.