Fight of the Tertia (German: Der Kampf der Tertia) is a 1952 West German family film directed by Erik Ode and starring Brigitte Rau, Wolfgang Jansen and Horst Köppen.

It was shot at the Wandsbek Studios in Hamburg and on location around the city.

The film's sets were designed by the art director Hans Luigi.

It is based on the 1928 novel of the same name by Wilhelm Speyer which was previously adapted into a 1929 silent film.

Youth gangs clash in a small town on the Baltic Sea.