The 2015–16 Campionato Sammarinese di Calcio season was the thirty-first since its establishment. It is the highest level in San Marino, in which the country's top 15 amateur football clubs play. The season began on 11 September 2015 and ended with the play-off final on 26 May 2016. Folgore/Falciano were the defending champions.
Participating teams
Because there is no promotion or relegation in the league, the same 15 teams who competed in the league last season competed in the league this season.
All teams played twice against the teams within their own group and once against the teams from the other group. This meant that the clubs in the eight-club group played 21 matches each while the clubs in the seven-club group played 20 matches each during the regular season.[3]
The play-offs were played in a double-eliminination format with both group winners earning byes in the first and second round. All matches were decided over one leg with extra time and then penalties used to break ties.[3]