The Loening XS2L was an American biplane scout amphibian developed by Keystone-Loening (then a subsidiary of Curtiss-Wright), for the United States Navy during the early 1930s.

In the early 1930s the Navy became interested in exploring amphibious capabilities for its cruiser-based observation and scout floatplanes to remedy the problem of periodically having to rig the wheeled undercarriage and then revert to floats.

The Loening's entry was a conventional biplane that featured flying boat hull, retractable main landing gear and a single R-985 Wasp Junior engine in a nacelle on the upper wing.

The pilot and observer were seated in an enclosed cockpit that also encompassed some of the interplane struts, resulting in a curiously shaped glazing area.

Although it showed marginally better performance than its rivals, it still offered no considerable advantages over the existing floatplanes like the Vought O3U-3 and Berliner-Joyce OJ-2, and no production resulted.