The Czechoslovak War Cross 1939 (Československý válečný kříž 1939 in Czech, Československý vojnový kríž 1939 in Slovak) is a military decoration of the former state of Czechoslovakia which was issued for those who had provided great service to the Czechoslovak state (in exile) during the years of World War II.

The award was mainly intended for persons who had helped liberate Czechoslovakia from the rule of Nazi Germany.

Several American officers received the award, such as Dwight D. Eisenhower or George S. Patton, and the decoration was also bestowed to national heroes, such as the men who had assassinated Reinhard Heydrich in operation Anthropoid.

On the obverse of the cross there was the lesser coat of arms of Czechoslovakia, on the reverse – symbols of the three historical Czech lands and two other adjoined lands in circles: symbol of Bohemia proper in the middle, Slovakia above, Moravia on the left, Silesia on the right, and Subcarpathian Rus' below.

The medal was suspended from a white ribbon with red and blue stripes.