The men's Greco-Roman middleweight competition at the 1956 Summer Olympics in Melbourne took place from 3 December to 6 December at the Royal Exhibition Building.

[1] Middleweight was the third-heaviest category, including wrestlers weighing 73 to 79 kilograms (160.9 to 174.2 lb).

[2] This Greco-Roman wrestling competition continued to use the "bad points" elimination system introduced at the 1928 Summer Olympics for Greco-Roman and at the 1932 Summer Olympics for freestyle wrestling, as modified in 1952 (adding medal rounds and making all losses worth 3 points—from 1936 to 1948 losses by split decision only cost 2).

This elimination continued until the medal rounds, which began when 3 wrestlers remained.

Dobrev defeated Jansson in a de facto silver medal bout.