Cross country skiing at the 1984 Winter Olympics – Men's 30 km

The 30 kilometre cross-country skiing event was part of the cross-country skiing programme at the 1984 Winter Olympics, in Sarajevo, Yugoslavia. It was the eighth appearance of the 30 km race. The competition was held on Friday, February 10, 1984, at Veliko Polje, Igman.

Of the 72 athletes who started the race, 3 were disqualified.

Nikolai Zimyatov of the Soviet Union successfully regained his Olympic title. His fellow countryman Alexander Zavyalov took silver with Sweden's Gunde Svan taking bronze.