Klaus Rost (2 March 1940 – 10 August 2023) was a German lightweight wrestler.

He competed in freestyle wrestling at the 1964, 1968, and 1972 Olympics and won a silver medal in 1964.

In Greco-Roman wrestling he won a bronze medal at the 1963 World Championships, and finished fourth at the 1968 Olympics and 1969 World Championships.

[1] Rost died in Witten on 10 August 2023, at the age of 83.

This biographical article relating to a German sport wrestler or wrestling coach is a stub.