Avia Motors s.r.o. is a Czech automotive manufacturer. Founded in 1919 as an aircraft maker, it diversified into trucks after 1945. As an aircraft maker it was notable for producing biplane fighter aircraft, especially the B-534. Avia ceased aircraft production in 1963.

The Avia B-534 is a Czechoslovak biplane fighter developed and manufactured by aviation company Avia. It was produced during the period between the First World War and the Second World War. The B-534 was perhaps one of the most well-known Czechoslovakian aircraft of the era.