The Beneš-Mráz Bibi was a 1930s Czechoslovak two-seat touring aircraft.

The Bibi was a lighter, smaller aircraft in which the seats were side-by-side instead of in tandem, and the cockpits were fully enclosed, retaining the Beta-Minor's cantilever low-wing cantilever monoplane layout, with fixed tailwheel undercarriage.

Development of the Bibi began with the Be-501 two-seat cabin tourer, and culminated with the Be-555 Super Bibi.

[1] One example of the Be-550 Bibi (OK-BET) was imported into the United Kingdom, stored during World War II, then registered as G-AGSR until a fatal crash in 1951.

[1] Data from L'Année Aéronautique 1938–1939[2]General characteristics Performance