The 2015–16 Czech First League, known as the Synot liga for sponsorship reasons, was the 23rd season of the Czech Republic's top-tier football league. Defending champions Viktoria Plzeň won the league for a second consecutive season, winning their fourth Czech title as a result.
Sigma Olomouc, the 2014–15 FNL champion, returned to the First League just one season after their relegation. Runner-up FK Varnsdorf were not promoted as their stadium failed to meet the league requirements. Instead, FC Fastav Zlín rejoined the top level for the first time since the 2008–09 season.
Updated to games played on 14 September 2015Source: synotliga.czNotes:1: Team played last season in FNL