The 2017–18 season was the 91st season in ACF Fiorentina's history and their 80th in the top-flight of Italian football. Fiorentina competed in Serie A and the Coppa Italia, missing out on European football for the first time since the 2012–13 season following an eighth-place finish in the 2016–17 season. ACF Fiorentina are the first club in the history of football to wear 5 player kits.