In 2015 Ferrari competed at the first two Italian Serie A competitions. In March she competed at the 2015 AT&T American Cup where she finished sixth. In April she competed at the 2015 European Championships where she qualified to the all-around final in tenth place. However, she opted to withdraw from the final and allow teammate Martina Rizzelli to compete, due to the fact she was still overcoming mononucleosis. In October Ferrari competed at the Novara Cup where Italy finished second in the team final and Ferrari finished eleventh in the all-around. Later that month Ferrari competed at the 2015 World Championships. She helped Italy qualify to the team finals and individually she qualified to the all-around final but withdrew, which allowed teammate Tea Ugrin to compete.