The 2015–16 season was the 13th season in the history of the Scarlets, a Welsh rugby union regional side based in Llanelli, Carmarthenshire. In this season, they competed in the Pro 12 and the European Champions Cup. It was head coach Wayne Pivac's second season in charge of the region, and Stephen Jones' first season as backs coach after joining from Wasps. In addition to this, Ioan Cunningham was promoted to forwards coach after being part of Llanelli RFC and the Scarlets academy coaching team.
