The Foo Pass (German: Foopass) is a mountain pass of the Glarus Alps, located on the border between the Swiss cantons of St. Gallen and Glarus, at an elevation of 2,223 m (7,293 ft). It crosses the col between the peaks of Foostock and Piz Sardona.

The pass is traversed by a trail, which connects the village of Weisstannen, in the canton of St. Gallen at an elevation of 1,004 m (3,294 ft), with the village of Elm, in the canton of Glarus at an elevation of 977 m (3,205 ft). The trail forms part of the Alpine Pass Route, a long-distance hiking trail across Switzerland between Sargans and Montreux.

The alpine pasture below the pass on the St Gallen side is notable for its marmot colony.

• List of mountain passes in Switzerland

• Media related to Foo Pass at Wikimedia Commons
• Foo Pass on Via Alpina web site
• Foopass on Hikr web site
• Crossing Foo Pass from MySwitzerland web site