Priesthood Sunday is a special day set aside to honor priesthood in the United States.

It is a day to reflect upon and affirm the role of the priesthood in the life of the Church as a central one. This nationwide event celebrated on the last Sunday of September is coordinated and sponsored by the US Council of Serra International. Catholics are invited to observe other events, such as World Day of Prayer for Vocations and World Day for Consecrated Life, National Vocation Awareness Week and National Catholic Sisters Week. Priesthood Sunday, however, specifically honors priests, without whom the Mass could not be offered and Sacraments could not be celebrated.