Saint Joseph, Mary’s husband, is mentioned in the Eucharistic prayer

Saint Joseph of Nazareth, set over the Lord’s family, marvelously fulfilled the office he received by grace. Adhering firmly to the mystery of God’s design of salvation in its very beginnings, he stands as an exemplary model of the kindness and humility that the Christian faith raises to a great destiny, and demonstrates the ordinary and simple virtues necessary for mankind to be good and genuine followers of Christ.

Through these virtues, this Just man, caring most lovingly for the Mother of God and happily dedicating himself to the upbringing of Jesus Christ, was placed as guardian over God the Father’s most precious treasures. Therefore he has been the subject of assiduous devotion on the part of the People of God throughout the centuries, as the support of that mystical body, which is the Church…

Saint Pope John XXIII, in the days of the Most Holy Second Ecumenical Council of the Vatican, decreed that Saint Joseph’s name be added to the ancient Roman Canon…

Today this Congregation for Divine Worship and the Discipline of the Sacraments, by virtue of the faculties granted by the Supreme Pontiff Francis, is pleased to decree that the name of Saint Joseph, Spouse of the Blessed Virgin Mary, is henceforth to be added to Eucharistic Prayers II, III, and IV, as they appear in the third typical edition of the Roman Missal, after the name of the Blessed Virgin Mary.

Antonio Card. Cañizares Llovera, Prefect of the Congregation for Divine Worship and the Discipline of the Sacraments

Excerpt adapted from the Decree regarding the Mention of the Divine Name of Saint Joseph 
in the Eucharistic Prayers II, III, and IV

Vatican.va