II Rhythmic Gymnastics World Championships were held in Prague, Czechoslovakia on 3 and 4 December 1965.

There were 32 competitors from 12 countries - Soviet Union, Czechoslovakia, Bulgaria, German Democratic Republic, Federal Republic of Germany, Hungary, Poland, Yugoslavia, Finland, Cuba, Belgium & Austria.

Competitors competed in two events - freehand and with apparatus.

Routines were marked out of 20.