The topic of this graduation thesis is non-verbal communication in handball. The existence and role of non-verbal codes in specific sports will be presented. The methodology is based on scientific research methods such as deductive and inductive methods, analysis and synthesis, interviews and empirical knowledge. The aim of the research is to emphasize the importance of non-verbal communication in sports, to show its contribution to the achievement of sports accomplishment and to show how much it affects the relationships of all participants in sports. Accordingly, the main point of this text is that non-verbal communication is an important element of achieving better results in sports, specifically handball, and that it is an integral part of mutual communication; especially since it is extremely important that in this process of exchanging words and symbols, all participants are equally understood. Each training session and each game is a separate communication process. Its main purpose is the establishment of team relations and the individual development of each athlete. Considering the type of communication, its intensity and overall context, handball - like any other sports activity - exhibits special characteristics during interpersonal and group communication of which, we will refer to the key ones. The aim of the paper is to show how important non-verbal communication is in handball; achieving a top result is impossible without its application. This thesis will try to explain how much, when and why the use of non-verbal communication is necessary.