Karel Krnka (1858–1926) was a Czech gunsmith and inventor. He is known for his involvement in the design of early semi-automatic pistols.
Biography.
Karel Krnka was the son of Sylvestr Krnka.
In 1906, the Roth–Steyr M1907 pistol designed by Krnka was adopted as the standard sidearm of the Austro-Hungarian Army.
After the establishment of Czechoslovakia in 1918, he offered his services to the Czechoslovak government, returning to Prague in 1922. He first worked at a small arms factory in Prague-Vršovice, then later for Zbrojovka Brno from the spring of 1925 until his death.