Andrew of Trier was the twelfth bishop of the see of Trier, serving during the third century. Although historical details regarding his specific biography remain scarce, he is recognized as one of the early bishops from this period. He is traditionally categorized as a pre-congregational saint, and some historical records also identify him as a martyr.
Life and role

Little is documented about the personal life of Andrew of Trier. He functioned as a leader within the early Christian community in Trier, representing the twelfth individual to hold the bishopric. His tenure occurred during a formative era for the church in that region.
Veneration
The saint is honored in Trier, where his memory is preserved through liturgical commemoration. He is celebrated annually on January 13. His status as a saint predates the formal establishment of modern congregational structures.
