| Club: | FC Dinamo București |
| Season: | 1965–66 |
| Manager: | Angelo Niculescu |
| Mgrtitle: | Manager |
| League: | Divizia A |
| League Result: | 3rd |
| Cup1: | Romanian Cup |
| Cup1 Result: | Quarter-finalist |
| Cup2: | European Cup |
| Cup2 Result: | First round |
| League Topscorer: | Gheorghe Ene (15) |
| Prevseason: | 1964–65 |
| Nextseason: | 1966–67 |
The 1965–66 season was FC Dinamo București's 17th season in Divizia A. After four consecutive championships, Dinamo finishes only third this time. In the European Cup, Dinamo meets again Internazionale Milano. Despite winning the home game, Dinamo is eliminated by the title holder.
| Divizia A | ||||
|---|---|---|---|---|
| Round | Date | Opponent | Stadium | Result |
| 1 | 15 August 1965 | Siderurgistul Galaţi | A | 3-2 |
| 2 | 22 August 1965 | Ştiinţa Timişoara | H | 2-3 |
| 3 | 29 August 1965 | Steagul Roşu Braşov | A | 1-4 |
| 4 | 5 September 1965 | Rapid București | H | 0-2 |
| 5 | 5 December 1965 | Ştiinţa Cluj | H | 4-0 |
| 6 | 26 September 1965 | Dinamo Piteşti | A | 1-2 |
| 7 | 3 October 1965 | Steaua București | A | 3-3 |
| 8 | 10 October 1965 | Crişul Oradea | H | 3-0 |
| 9 | 13 October 1965 | UTA | A | 0-3 |
| 10 | 31 October 1965 | Ştiinţa Craiova | A | 0-0 |
| 11 | 7 November 1965 | Petrolul Ploieşti | H | 2-1 |
| 12 | 10 November 1965 | CSMS Iaşi | H | 0-1 |
| 13 | 27 November 1965 | Farul Constanţa | A | 1-1 |
| 14 | 20 March 1966 | Siderurgistul Galaţi | H | 4-0 |
| 15 | 27 March 1966 | FC Politehnica Timișoara | A | 1-0 |
| 16 | 31 March 1966 | Steagul Roşu Braşov | H | 1-0 |
| 17 | 10 April 1966 | Rapid București | A | 0-0 |
| 18 | 17 April 1966 | U Cluj | A | 1-2 |
| 19 | 2 May 1966 | Dinamo Piteşti | H | 1-1 |
| 20 | 8 May 1966 | Steaua București | H | 1-1 |
| 21 | 15 May 1966 | Crişul Oradea | A | 0-0 |
| 22 | 22 May 1966 | UTA | H | 0-1 |
| 23 | 5 June 1966 | Ştiinţa Craiova | H | 8-0 |
| 24 | 12 June 1966 | Petrolul Ploieşti | A | 2-2 |
| 25 | 26 June 1966 | CSMS Iaşi | A | 2-1 |
| 26 | 10 July 1966 | Farul Constanţa | H | 4-3 |
| Cupa României | ||||
|---|---|---|---|---|
| Round | Date | Opponent | Stadium | Result |
| Last 32 | 13 March 1966 | Vagonul Arad | A | 2-1 |
| Last 16 | 11 May 1966 | U Cluj | Mediaş | 3-1 |
| Quarter-finals | 22 June 1966 | Steaua București | București | 0-2 |
Preliminary round – first leg----Second leg
First round – first leg----Second leg
Goalkeepers: Ilie Datcu, Iuliu Uţu.
Defenders: Dumitru Ivan, Ion Nunweiller, Lică Nunweiller, Lazăr Pârvu, Cornel Popa, Mircea Stoenescu, Constantin Ștefan.
Midfielders: Vasile Gergely, Emil Petru, Octavian Popescu.
Forwards: Florea Dumitrache, Gheorghe Ene, Constantin Frățilă, Gheorghe Grozea, Ion Haidu, Vasile Ionescu, Mircea Lucescu, Radu Nunweiller, Ion Pîrcălab, Aurel Unguroiu, Iosif Varga.
Mircea Stoenescu and Iosif Varga are brought from Dinamo Piteşti. Varga and Marcel Pigulea are suspended for six months by the club. Florea Dumitrache made his debut in the first squad.