You can find Greek HD football logos as PNG and 2500×2500 px. on this page
AE Larissa FC 
AEK Athens FC 
Apollon Smyrni FC 
Aris FC 
Asteras Tripolis FC 
Atromitos Athen FC 
Levadiakos FC 
OFI Crete FC 
Olympiacos FC 
Panathinaikos FC 
Panetolikos Agrinio FC 
Panionios FC 
PAOK FC 
PAS Giannina FC 
PAS Lamia 
Xanthi FC