The 10.5 cm hrubý kanón vz. 35 (Heavy Gun model 35) was a Czech field gun used in the Second World War.
The field gun was developed by the Military Aviation and Technical Institute starting in 1927. Its final form was approved in 1931. In 1933, the Ministry of Defense ordered a prototype which was delivered by à  koda at the end of November 1934. After extensive testing and the resolution of defects, the piece was adopted in 1935 by the army under the designation .
After the occupation, the guns captured by Germany were put into service by the Wehrmacht under the designation . Furthermore, the production of these modern and efficient weapons continued for the Germans in occupied Czechoslovakia. Additional guns were captured in the Balkans campaign and were given the designation . These guns were used by a variety of German units during World War II, especially on coastal defense duties.
It was designed solely for motor traction. It fired HE, canister and semi-armor-piercing shells.