The “ActiveAge Handbook” is an outcome of the “ActiveAge Project, which was carried out from January 2013 until June 2014 in the frame of “2012 Preparatory Actions in the Field of Sport” of the European Commission Directory General Education and Cul- ture (DG EAC) in cooperation with 13 European partners under the leadership of the German Gymnastic Federation (DTB). “ActiveAge” was set up as a transnational project that fosters the exchange of knowledge and experience to counteract the physical inactivity of elderly people through capacity building for physical activities and sport programs of aging people in well- structured and wide-spread settings, with the starting point in sport-organizations. The handbook is intended to be used as a guideline for further activities of the “European Platform Active Aging in Sport” (EPAAS), which will continue the mission of the ActiveAge Project. Furthermore the handbook should serve as well for any other stakeholder interested to promote physical activities and sport for elderly people.