Warinus of Poitiers (Warin, Guerin, Gerinus) (d. 677) is the Franco-Burgundian Count of Poitiers and Count of Paris who became Saint Warinus, Martyr of the Franks. He is the son of Saint Sigrada of Sainte-Marie de Soissons and the brother of Saint Leodegarius. He is also the father of Saint Leudwinus.
In 677 Warinus was stoned to death near Arras because of a feud between his brother, Leodegarius, and Ebroin, the Frankish Mayor of the Palace of Neustria.
Warinus was born at Autun, Saone-et-Loire, Burgundy. He is the son of Bodilon, Count of Poitiers and Sigrada of Alsace and Sainte-Marie de Soissons. Saint Leodegarius was his brother. He was the founder of the famous noble family of the Guideschi.
As a nobleman he spent his childhood at the court of Clotaire II.
In he married Gunza von Treves, a Frankish noblewoman in France. His wife came from an influential Frankish family. She was the sister of Saint Basinus of Treves. They had three children:
- Doda of Poitiers (circa b. 659 - circa d. 678)
- Leudwinus, Count of Poitier (b. 660 - d. 722)
- Grimgert, Count of Paris (circa b.667)
In 677 Warinus was stoned to death near Arras because of a feud between his brother, Leodegarius and Ebroin, the Frankish Mayor of the Palace of Neustria.