Rubuta ci gaba don wannan sakin layi - A ranar 11 ga Agusta, 2012, Buffon ya ɗaga kofinsa na farko a matsayin sabon kyaftin din Juventus, bayan ficewar Alessandro Del Piero yayin da Juventus ta doke Napoli 4<unk>2 a cikin karin lokaci a 2012 Supercoppa Italiana
a birnin Beijing. Buffon ya sami rauni kaɗan kuma ya rasa wasan farko na Serie A na kakar 2012-13 da Parma a ranar 25 ga Agusta 2012. Ya dawo cikin rukunin farko don wasa na gaba da Udinese a Udine a ranar 2 ga Satumba, yana sanye da kambin kyaftin din; Juventus ta lashe wasan 4<unk>1. A ranar 20 ga Satumba, a wasan farko na gasar zakarun Turai na Juventus a kakar wasa ta bana da Chelsea, Buffon ya buga wasan sa na 400 a Juventus; wasan ya kare ne da ci 2-2. Buffon ya sami kwallo na farko a kakar wasa ta bana a wasan da suka ci Chievo da ci 2-0 a ranar 22 ga Satumba.