Sport has been a tool of international relations since the dawn of the XXth Century and still continues to be part of the international scene. A geopolitical approach of sport is therefore useful and is in line with the definition of Lacoste about geopolitics which stresses the role of imagery used in conflicts. In fact, sport is a symbolic confrontation and this image can be used for manipulation by certain actors. First, we describe relations between the various actors of the Olympic movement because the Olympic Games are now the most popular show broadcast in the world and the Olympic movement controls the family of sport at the international scale. We then analyse the way the International Olympic Committee (IOC) is playing its own international relations game. Its power is inherent to its authority to recognize countries as does the United Nations Organization. Taking part in the Olympic ceremony is a proof of international recognition and many new nations need it. This recognition has created a “sports geography” which is different from the traditional geography of States and sometimes interferes with this. Moreover, IOC tries to be an actor of international relations in order to strengthen its own position and to eliminate possible rivals which could run sports at the world scale. The other key actors are States which use or manipulate sport in order to deliver messages to their own population or to the international community. Some create a sports diplomacy which is an element of soft power. More recently, a new actor has begun to use sport. NGOs such as Greenpeace or Amnesty International take advantage of sporting events to deliver their own messages.