In the 1960s and 1970s, Christian Langeweg was one of the leading Dutch chess players.

In 1961, in Amsterdam Christian Langeweg won the IBM international chess tournament.

In 1976, in Zürich he ranked in 4th place in the first Switzerland Open Chess Championship.

Christian Langeweg played for Netherlands in the Chess Olympiads:[1] Christian Langeweg played for Netherlands in the European Team Chess Championships:[2] Christian Langeweg played for Netherlands in the World Student Team Chess Championships:[3] Also Christian Langeweg ten times played for Netherlands in the Clare Benedict Chess Cups (1961-1962, 1966–1970, 1972–1974) where in team competition won 2 gold (1966, 1969) and 2 silver (1968, 1972) medals, and in individual competition won gold (1966) medal.

This biographical article relating to a Dutch chess figure is a stub.