1899–1900 Northern Rugby Football Union season
| 1899–1900 Northern Rugby Football Union season | |
|---|---|
| Structure | Separate county competitions | 
| 1899–1900 Season | |
| Top point-scorer(s) | Sam Williams ( Oldham) 108  | 
| Top try-scorer(s) | Sam Williams ( Oldham) 36  | 
| Lancashire Senior Competition | |
| Champions | Runcorn | 
| Top point-scorer(s) | Sam Williams ( Oldham) 108  | 
| Top try-scorer(s) | Sam Williams ( Oldham) 36  | 
| Promotion and relegation | |
| Promoted from Lancashire second competition | Barrow | 
| Relegated to Lancashire second competition | Tyldesley | 
| Yorkshire Senior Competition | |
| Champions | Bradford | 
| Top point-scorer(s) | Wattie Davies ( Batley) 107  | 
| Top try-scorer(s) | Wattie Davies ( Batley) 21  | 
The 1899–1900 Northern Rugby Football Union season was the fifth season of rugby league football.