# 1965–66 Yugoslav Second League

The 1965–66 Yugoslav Second League season was the 20th season of the Second Federal League (Serbo-Croatian: Druga savezna liga), the second level association football competition of SFR Yugoslavia, since its establishment in 1946. The league was contested in two regional groups (West Division and East Division), with 18 clubs each, two more than in the previous season.

## West Division
### Teams

A total of eighteen teams contested the league, including thirteen sides from the 1964–65 season and five sides promoted from the third tier leagues played in the 1964–65 season. The league was contested in a double round robin format, with each club playing every other club twice, for a total of 34 rounds. Two points were awarded for wins and one point for draws.
There were no teams relegated from the 1964–65 Yugoslav First League. The five clubs promoted to the second level were Bosna, Leotar, Segesta, Slovan and Zadar. At the winter break, Slovan abandoned competition due to lack of funding.
| Team | Location | Federal subject | Position in 1964–65 |
| Borac Banja Luka | Banja Luka | SR Bosnia and Herzegovina | 0088th |
| Borovo | Borovo Naselje | SR Croatia | 01010th |
| Bosna | Visoko | SR Bosnia and Herzegovina | — |
| Čelik | Zenica | SR Bosnia and Herzegovina | 0055th |
| Famos Hrasnica | Hrasnica | SR Bosnia and Herzegovina | 0099th |
| Istra | Pula | SR Croatia | 01414th |
| Leotar | Trebinje | SR Bosnia and Herzegovina | — |
| Lokomotiva Zagreb | Zagreb | SR Croatia | 01111th |
| Maribor | Maribor | SR Slovenia | 0033rd |
| Slavonija Osijek | Osijek | SR Croatia | 0066th |
| Rudar Kakanj | Kakanj | SR Bosnia and Herzegovina | 0077th |
| Segesta | Sisak | SR Croatia | — |
| Sloboda | Tuzla | SR Bosnia and Herzegovina | 0022nd |
| Slovan | Ljubljana | SR Slovenia | — |
| RNK Split | Split | SR Croatia | 01212th |
| Šibenik | Šibenik | SR Croatia | 0044th |
| Varteks | Varaždin | SR Croatia | 01313th |
| Zadar | Zadar | SR Croatia | — |

### League table

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | Čelik (C, P) | 33 | 22 | 7 | 4 | 65 | 27 | +38 | 51 | Promotion to Yugoslav First League |
| 2 | Sloboda Tuzla | 33 | 20 | 9 | 4 | 72 | 31 | +41 | 49 | |
| 3 | Borovo | 33 | 17 | 8 | 8 | 72 | 31 | +41 | 42 | |
| 4 | Maribor | 33 | 16 | 9 | 8 | 53 | 31 | +22 | 41 | |
| 5 | Lokomotiva Zagreb | 33 | 17 | 6 | 10 | 71 | 48 | +23 | 40 | |
| 6 | Šibenik | 33 | 16 | 4 | 13 | 53 | 51 | +2 | 36 | |
| 7 | Istra Pula | 33 | 15 | 5 | 13 | 50 | 48 | +2 | 35 | |
| 8 | Slavonija | 33 | 11 | 11 | 11 | 47 | 41 | +6 | 33 | |
| 9 | Leotar | 33 | 11 | 9 | 13 | 35 | 44 | −9 | 31 | |
| 10 | Famos Hrasnica | 33 | 11 | 8 | 14 | 56 | 50 | +6 | 30 | |
| 11 | Bosna | 33 | 11 | 8 | 14 | 47 | 52 | −5 | 30 | |
| 12 | Borac Banja Luka | 33 | 12 | 5 | 16 | 53 | 55 | −2 | 29 | |
| 13 | Segesta | 33 | 13 | 3 | 17 | 51 | 68 | −17 | 29 | |
| 14 | Varteks | 33 | 12 | 3 | 18 | 43 | 52 | −9 | 27 | |
| 15 | Rudar Kakanj | 33 | 8 | 9 | 16 | 38 | 57 | −19 | 25 | |
| 16 | RNK Split (R) | 33 | 5 | 11 | 17 | 32 | 62 | −30 | 21 | Relegation to Third Level |
| 17 | Zadar (R) | 33 | 8 | 5 | 20 | 40 | 89 | −49 | 21 | Relegation to Third Level |
| 18 | Slovan (R) | 17 | 2 | 4 | 11 | 14 | 57 | −43 | 8 | Relegation to Third Level |

## East Division
### Teams

A total of eighteen teams contested the league, including thirteen sides from the 1964–65 season, one club relegated from the 1964–65 Yugoslav First League and four sides promoted from the third tier leagues played in the 1964–65 season. The league was contested in a double round robin format, with each club playing every other club twice, for a total of 34 rounds. Two points were awarded for wins and one point for draws.
Sutjeska were relegated from the 1964–65 Yugoslav First League after finishing in the 15th place of the league table. The four clubs promoted to the second level were Lovćen, Radnički Sombor, Sloboda Titovo Užice and Sloga Kraljevo.
| Team | Location | Federal subject | Position in 1964–65 |
| Bačka | Bačka Palanka | SAP Vojvodina | 0099th |
| Bor | Bor | SR Serbia | 01414th |
| Borac Čačak | Čačak | SR Serbia | 01010th |
| Budućnost | Titograd | SR Montenegro | 0033rd |
| Lovćen | Cetinje | SR Montenegro | — |
| Novi Sad | Novi Sad | SAP Vojvodina | 0066th |
| Pobeda | Prilep | SR Macedonia | 01212th |
| Prishtina | Pristina | SAP Kosovo | 0077th |
| Proleter Zrenjanin | Zrenjanin | SAP Vojvodina | 0022nd |
| Radnički Sombor | Sombor | SAP Vojvodina | — |
| Sloboda Titovo Užice | Titovo Užice | SR Serbia | — |
| Sloga Kraljevo | Kraljevo | SR Serbia | — |
| Spartak Subotica | Subotica | SAP Vojvodina | 0088th |
| Srem | Sremska Mitrovica | SAP Vojvodina | 0055th |
| Sutjeska | Nikšić | SR Montenegro | — |
| Trepča | Kosovska Mitrovica | SAP Kosovo | 01313th |
| Voždovački | Belgrade | SR Serbia | 01111th |
| Železničar Niš | Niš | SR Serbia | 0044th |

### League table

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | Sutjeska Nikšić (C, P) | 34 | 16 | 10 | 8 | 70 | 45 | +25 | 42 | Promotion to Yugoslav First League |
| 2 | Proleter Zrenjanin | 34 | 16 | 10 | 8 | 61 | 39 | +22 | 42 | |
| 3 | Pobeda | 34 | 17 | 7 | 10 | 59 | 49 | +10 | 41 | |
| 4 | Bor | 34 | 16 | 6 | 12 | 48 | 39 | +9 | 38 | |
| 5 | Radnički Sombor | 34 | 15 | 7 | 12 | 57 | 54 | +3 | 37 | |
| 6 | Voždovački | 34 | 15 | 7 | 12 | 49 | 54 | −5 | 37 | |
| 7 | Spartak Subotica | 34 | 15 | 6 | 13 | 50 | 46 | +4 | 36 | |
| 8 | Trepča | 34 | 13 | 10 | 11 | 57 | 53 | +4 | 36 | |
| 9 | Budućnost | 34 | 13 | 8 | 13 | 45 | 37 | +8 | 34 | |
| 10 | Prishtina | 34 | 12 | 10 | 12 | 49 | 48 | +1 | 34 | |
| 11 | Železničar Niš | 34 | 12 | 9 | 13 | 50 | 51 | −1 | 33 | |
| 12 | Sloboda Titovo Užice | 34 | 11 | 13 | 10 | 42 | 33 | +9 | 32 | |
| 13 | Bačka | 34 | 10 | 10 | 14 | 43 | 49 | −6 | 30 | |
| 14 | Lovćen | 34 | 11 | 8 | 15 | 42 | 66 | −24 | 30 | |
| 15 | Borac Čačak | 34 | 8 | 13 | 13 | 33 | 42 | −9 | 29 | |
| 16 | Sloga Kraljevo | 34 | 10 | 12 | 12 | 48 | 48 | 0 | 28 | Relegation to Third Level |
| 17 | Srem (R) | 34 | 10 | 7 | 17 | 43 | 56 | −13 | 27 | Relegation to Third Level |
| 18 | Novi Sad (R) | 34 | 7 | 5 | 22 | 45 | 82 | −37 | 19 | Relegation to Third Level |
* ↑ Sloboda Titovo Užice were docked 3 points due to suspected match fixing in the previous season.
* ↑ Sloga Kraljevo were docked 4 points due to suspected match fixing in the previous season.