This article is missing information about Error: you must specify what information is missing.. Please expand the article to include this information. Further details may exist on the talk page.(March 2011)
The 1977–78 Yugoslav Cup was the 30th season of the top football knockout competition in SFR Yugoslavia, the Yugoslav Cup ([Kup Jugoslavije] Error: {{Lang-xx}}: text has italic markup (help)), also known as the "Marshal Tito Cup" (Kup Maršala Tita), since its establishment in 1946.