The Avia BH-17 was a biplanefighter aircraft built in Czechoslovakia in 1924. It was a development of the BH-6 and BH-8, and work on the latter aircraft was cut short in favour of this one. Operational trials in 1924 revealed performance good enough for the Czechoslovak Air Force to place an order for 24 examples. In actual service, however, the BH-17 proved unreliable and was soon withdrawn.