| 1966 Golden Fleece Cup | |
| Type: | VFL Night Series Cup |
| Year: | 1966 |
| Teams: | 8 |
| Count: | 2nd |
| Matches: | 7 |
| Attendance: | 95900 |
The 1966 VFL Golden Fleece Night Premiership was the Victorian Football League end of season cup competition played in September of the 1966 VFL Premiership Season. Run as a knock-out tournament, it was contested by the eight VFL teams that failed to make the 1966 VFL finals series. It was the eleventh VFL Night Series competition. Games were played at the Lake Oval, Albert Park, then the home ground of South Melbourne, as it was the only ground equipped to host night games. North Melbourne won its second night series cup in a row defeating Hawthorn in the final by 53 points.
Three rule changes, all of which were eventually permanently adopted in the VFL, were trialled during this series:,[1]
|- bgcolor="#CCCCFF"| Winning team| Winning team score| Losing team| Losing team score| Ground| Crowd| Date|- bgcolor="#FFFFFF"| | 14.12 (96)| | 11.20 (86)| Lake Oval| 15,700| Thursday, 1 September|- bgcolor="#FFFFFF"| | 14.12 (96)| | 11.10 (76)| Lake Oval| 10,200| Tuesday, 6 September|- bgcolor="#FFFFFF"| | 10.13 (73)| | 9.16 (70)| Lake Oval| 13,800| Thursday, 8 September|- bgcolor="#FFFFFF"| | 9.14 (68)| | 9.5 (59)| Lake Oval| 9,100| Thursday, 15 September
|- bgcolor="#CCCCFF"| Winning team| Winning team score| Losing team| Losing team score| Ground| Crowd| Date|- bgcolor="#FFFFFF"| | 13.12 (90)| | 12.15 (87)| Lake Oval| 14,200| Monday, 19 September|- bgcolor="#FFFFFF"| | 13.10 (88)| | 8.12 (60)| Lake Oval| 10,100| Wednesday, 21 September
|- bgcolor="#CCCCFF"| Winning team| Winning team score| Losing team| Losing team score| Ground| Crowd| Date|- bgcolor="#FFFFFF"| | 20.12 (132)| | 12.7 (79)| Lake Oval| 22,800| Monday, 26 September