Ioannis Protos is a Paralympian athlete from Greece competing mainly in category T13 sprint events.
He competed in the 2004 Summer Paralympics in Athens, Greece. There he finished sixth in the men's 100 metres – T13 event and finished fourth in the men's 200 metres – T13 event. He also competed at the 2008 Summer Paralympics in Beijing, China. There he won a bronze medal in the men's 400 metres – T13 event and finished seventh in the men's 200 metres – T13 event