The Lioré et Olivier LéO H-13 was a French biplane two-engine flying boat of the 1920s, built in passenger and military variants.

The LeO H-13 was constructed by Lioré et Olivier in Levallois-Perret factory, for an order of the French Aeronavale airlines.

In the French Navy, H-13 were quickly withdrawn for training purpose, because of weak structure and low manufacturing quality.

Wooden framed fuselage, plywood covered, rectangular in cross-section, with a flat bottom with a single step.

Armament: two twin 7.7 mm Lewis machine guns and 4 bombs up to 25 kg below a lower wing.