Giannis Ioannou (footballer, born 1931)

Giannis Ioannou (Ιωάννης Ιωάννου; born 1931) is a Greek footballer. He competed in the men's tournament at the 1952 Summer Olympics.

He started playing football in Ethnikos Piraeus and then, in 1953, he was transferred to Olympiacos F.C. where he played until 1960.

Honours
With Olympiacos:
 * Greek Championship: 1954, 1955, 1956, 1957, 1958 και 1959
 * Greek Cup: 1954, 1957, 1958, 1959 και 1960
 * Piraeus League: 1954, 1955, 1956, 1957, 1958 και 1959