Abundius (fl. 451 – 469) was a saint and bishop of Como, Italy.
Abundius is also the name of: Abundius and Irenaeus (died 258), saints and martyrs Abundius and Abundantius (died 304), saints martyred north of Rome in the Diocletian persecution Abundius of Umbria (died 303), saint martyred north of Rome in the Diocletian persecution Abundius the Sacristan (died 564), saint and sacristan of St. Peter's Basilica Abundius of Córdoba (died 854), 9th century priest, martyr, and saint of Córdoba, Spain Abundius of Pietra Montecorvina, saint and martyr of Pietramontecorvino in Apulia Abundius of Palestrina, Italian saint
See also Saint Abundantia (died 804), Christian saint Abundantius (disambiguation), the name of several Christian saints