Flavius Eparchius Philagrius (c. 338 - aft. 382) was a Roman politician and religious figure.
He married Egnatia Avita Severa, born c. 355, daughter of Quintus Flavius Egnatius Placidus Severus and wife Antonia Marcianilla, and had three sons: Eparchius, born c. 360, vir nobilis in Tullum Leucorum, Gallia, who married and was the father of Lupus of Troyes and Vincentius, a Priest and bishop of Mediolanum Santonum, Gallia Aquitania; Flavius Julius Agricola; and Lysticius, born c. 375.
- Continuité gentilice et continuité familiale dans les familles sénatoriales romaines à l'époque impériale, Oxford University (R.-U.), Linacre College, coll. « Prosopographica & Genealogica », 597 p., 2000 (ISBN 1-900934-02-7).