The Blanchard BB-1 was a 1920s French racing flying-boat designed and built by Société des Avions Blanchard to compete in Schneider Trophy.
The BB-1 was a single-seat parasol-wing monoplane flying-boat powered by a Gnome-Rhône Jupiter radial piston engine. The BB-1 was tested in 1924 but the performance was poor and the aircraft was not developed further and was scrapped.