The idea of the A.G.E.S. project - Addressing Gender Equality in Sport - was born in Pisa, in 2016, following the conference “Gender and Wellnes s in Sport” organized by the CO.RI. Institute - Communication & Research - of Livorno, with the patronage of the City of Pisa and Pisa European City of Sport 2016, the participation of the Fondazione Ordine degli Psicologi della Toscana and the Consiglio Cittadino per le Pari Opportunità di Pisa. The CO.RI. Institute, which has been dealing with gender studies and culture of equality for years, has promoted, in the conference held in Pisa, an opportunity for professionals and institutions to meet on the theme of gender equality in sport according to European guidelines. Professionals and representatives of bodies and institutions have participated in an active and motivated way, allowing a complex and in-depth analysis of the problem analysed. Due to the interest in the topics covered, expressed by all participants at the Conference, the CO.RI. Institute has agreed to collect the various contributions in a text, published by the P.O. Commission of the Region of Tuscany. As a consequence of the topicality and importance of the topics dealt with, the CO.RI. Institute involved the UISP of Pisa in the presentation of the Erasmus+ Sport “A.G.E.S” project with the intent to conduct a survey on the perception of gender stereotypes in sport. The UISP of Pisa has become the proposer of the project, in which two other relevant partners participated together with the CO.RI. Institute: Universidad Católica San Antonio de Murcia- UCAM (Spain) and University of Thessaly - UTH (Greece). The objective, shared by the partners, was to carry out a survey, through validated questionnaires, among a significant sample of girls and boys, adults and sport operators from the three countries involved, to verify the presence or absence of gender stereotypes and associated factors with respect to sport activity. The normative premises of reference are those of the European Union and its contrast to any form of discrimination. In particular, article 165 of the Treaty on the Functioning of the European Union states the importance of sport and states that its action is “aimed at developing the European dimension of sport, promoting fairness and openness in sportingcompetitions and cooperation between bodies responsible for sport and protecting the physical and moral integrity of sportsmen and sportswomen, especially the youngest among them”. Already in 2003, with the Resolution on “Women Sport”, the Strasbourg Parliament called on the Member States to ensure women equal access to sport; to support women’s sport and called for action to eliminate the distinction between male and female practices in high-level disciplines. It also called on national sports federations to guarantee equal rights to women and men in terms of income, support and training conditions, access to competitions, social protection and vocational training, and active social reintegration at the end of sporting careers. Finally, the Member States and the supervisory authorities were urged to make their authorization and subsidization of sports associations conditional on the implementation of statutory provisions that respect gender equality, in order to ensure a balanced representation of women and men (gender balance) at all levels and for all decision-making positions. In spite of these precise indications, in Italy, as in many European countries, the Reco- mmendations have not been fully implemented, so the need for new positive actions has arisen. For this reason, the Council of the Representatives of the Governments of the Member States, meeting on 21 May 2014, on the European Union Work Plan for Sport (2014 - 2017) reiterated with a further Recommendation that “through the use of specific training and tools, it is possible to encourage, empower and support physical education teachers, coaches, trainers and sports instructors in promoting equality between girls and boys in sport and manage problematic situations caused by gender differences and inter-cultural issues related to access to sports practices and physical education”. With regard to gender equality, the “Preparation of expert group recommendations or guiding principles on gender equality in sport, possibly followed by a list of commitments made” is announced. The need for gender balance in the management roles of sports clubs in line with the Charter for Women of the European Commission and the strategic actions for equality between women and men in the five-year period 2010- 2015 is also stressed. Subsequently, a proposal was approved regarding further strategic actions to be implemented in the period 2014-2020 to promote gender equality in sport. With the A.G.E.S. project the actors involved, reconnecting to the objectives of the previous European recommendations, wanted to contribute to the promotion of the gender equality process in sport, through a first analysis of the possible presence of gender stereotypes and associated factors in the population samples examined in the three European countries: Italy, Spain and Greece. In particular, the project was aimed at age groups crucial for the development and future of the three countries (young people and adolescents aged 14-16 years) and adults participating in their training (parents, teachers and coaches) to analyse the presence or absence of gender stereotypes and associated factors among the three samples identified. The priority objective of A.G.E.S. was to experiment and document, through a comparative study, the comparison on the perception of gender stereotypes in sport, not only between the different categories of people, but also between the three different national contexts. A further objective, related to the previous one, was to contribute with the procedure of the project to raise cultural awareness on the theme of gender equality in sport. The implementation of this project, characterized by a collaboration among different partners, required a methodological and not only projectual sharing and a constructive comparison between professionals and different territorial realities. The data, which emerged from this study, also have the strategic role of outlining an overall picture that gives a comparative view of the perception of gender stereotypes and associated factors and prejudices in sport in Italy, Spain and Greece.