You can find Italian football logos as PNG and 2500×2500 px. on this page
AC Fiorentina 
AC Chievo Verona 
AC Milan 
AS Roma 
Atalanta BC 
Bologna FC 1909 
Cagliari Calcio 
Empoli FC 
FC Internazionale 
Frosinone Calcio 
Genoa CFC 
Juventus FC 
Parma Calcio 1913 
S.P.A.L. 
SSC Napoli 
SS Lazio 
Torino FC 1906 
UC Sampdoria 
Udinese Calcio 
US Sassuolo