Castlereagh League
| Sport | Rugby league |
|---|---|
| Formerly known as | Group 14 |
| Inaugural season | 1949 |
| Ceased | 1999 |
| Re-formed | 2001 |
| Number of teams | 9 |
| Country | Australia |
| Premiers | Coolah (2025 2nd title) |
| Most titles | Coonamble (18 titles) |
The Castlereagh League (also known as the Castlereagh Cup and formerly as Group 14 Rugby League) is a rugby league competition in western New South Wales, Australia For all intents and purposes the competition is effectively the Group 14 Rugby League senior competition, and the league has re-obtained Group status as of 2023, but will not revert to the Group 14 name for branding reasons. In 2025, the competition ran a first grade and reserve grade competition in men's, and women's league tag.