Saint-Sever Abbey (abbaye de Saint-Sever) is a Benedictine abbey in Saint-Sever, Landes, France. It was founded at the end of the 10th century by William II Sánchez of Gascony. It was listed by France as a historic monument on 18 November 1911 and in 1998 it and other sites were jointly designated as the Routes of Santiago de Compostela in France World Heritage site.
Coordinates: 43°45′35″N 0°34′27″W / 43.7597°N 0.5742°W