Most saints have specially designated feast days. On those days we remember these holy men and women in a special way. The tradition arose from the early Christian custom of commemorating each martyr annually on the date of his or her death, or birth into heaven, a date therefore referred to in Latin as the martyr's dies natalis ("day of birth"). The Church also celebrates special events or happenings in the history of the Church with solemnities, feasts, and memorials. The saint days and other celebrations in the month of January are: 

January 1 - Solemnity of Mary, Mother of God

January 2 - Saints Basil the Great and Gregory Nazianzen, bishops & doctors of the Church

January 4 - Saint Elizabeth Ann Seton, religious 

January 5 - Epiphany of the Lord

January 12 - Baptism of the Lord

January 17 - Saint Anthony, abbot

January 21 - Saint Agnes, virgin & martyr

January 22 - Day of Prayer for the Legal Protection of Unborn Children

January 24 - Saint Francis de Sales, bishop & doctor of the Church

January 25 - Conversion of Saint Paul, apostle

January 28 - Saint Thomas Aquinas, priest & doctor of the Church

January 31 - Saint John Bosco, priest

All you holy men and women, pray for us!