1965–66 Yugoslav Cup
The 1965–66 Yugoslav Cup was the 19th season of the top football knockout competition in SFR Yugoslavia, the Yugoslav Cup, also known as the "Marshal Tito Cup", since its establishment in 1946.
Round of 16
In the following tables winning teams are marked in bold; teams from outside top level are marked in italic script.| Tie no | Home team | Score | Away team |
| 1 | Aluminij Kidričevo | 0–4 | Slavonija Osijek |
| 2 | FK Bačka Bačka Palanka | 2–3 | Vardar |
| 3 | Hajduk Split | 0–0 | Dinamo Zagreb |
| 4 | Rijeka | 3–1 | Partizan |
| 5 | Sloboda Tuzla | 5–0 | Mladost Smederevska Palanka |
| 6 | Sutjeska Nikšić | 3–3 | OFK Belgrade |
| 7 | Trepča | 3–1 | Red Star |
| 8 | Željezničar Sarajevo | 0–1 | Srem |