The men's Greco-Roman middleweight competition at the 1964 Summer Olympics in Tokyo took place from 16 to 19 October at the Komazawa Gymnasium.

[1] Middleweight was the third-heaviest category, including wrestlers weighing 78 to 87 kilograms (172.0 to 191.8 lb).

If 2 wrestlers remained, point totals were ignored and they faced each other for gold and silver (if they had already wrestled each other, that result was used).

The tie for the silver and bronze medals, however, needed to be broken by a head-to-head match in the final round.

In a tie-breaker bout to determine the silver and bronze medals, Kormaník defeated Metz by decision.