| League details | |
|---|---|
| Dates | 3 October 1965 – 9 October 1966 |
| League champions | |
| Winners | Kilkenny (3rd win) |
| Other division winners | |
| Division 2 | Offaly |
| Division 3 | Mayo |
← 1964–65 1966–67 → | |
The 1965–66 National Hurling League was the 35th season of the National Hurling League.