Karl Wenk (born 20 December 1934) is a German former sports shooter. He competed in the 50 metre rifle prone events at the 1964 Summer Olympics and the 1968 Summer Olympics.
1964 Summer Olympics in Tokyo, competing for the United Team of Germany:
- Shooting – Men's 50 metre rifle, prone – 7th place
1968 Summer Olympics in Mexico City, competing for the West Germany:
- Shooting – Mixed 50 metre rifle, prone – 13th place