Josip Zemko (13 March 1946 — 11 April 2017) was a Yugoslav football manager and player.
Zemko played a total of 74 matches for Željezničar.
He never managed to reach the same level of play he was showing before the injury.
Zemko made his debut for Yugoslavia in a September 1965 friendly match away against the Soviet Union and earned a total of 3 caps, scoring no goals.
His final international was an October 1965 World Cup qualification match away against France.