Mihalis Filopoulos (Greek: Μιχάλης Φιλόπουλος) (1985–2007) was a 22-year-old Panathinaikos fan who was stabbed to death on March 29, 2007 at Paiania, a town near Athens, Greece, during a pre-arranged clash with rival hooligans of Olympiakos. His death caused major upset in Greece and sparked a large police investigation into the organised supporters scene.