| 2021 Betfred League 1 | |
|---|---|
| League | League 1 |
| Duration | 8 May 2021 – 10 October 2021 |
| Teams | 10 |
| Matches played | 92 |
| Points scored | 5,075 |
| Highest attendance | 2,997 (Workington v Doncaster, 10 October 2021) |
| Lowest attendance | 100 (West Wales Raiders vs Hunslet, 26 June 2021) |
| Champions |  Barrow Raiders (2nd title) |
| Top point-scorer(s) | Jack Miller (Keighley) 240 |
| Top try-scorer(s) | Tee Ritson (Barrow) 22 Rob Massam (North Wales) 22 |
The 2021 RFL League 1 is a professional rugby league football competition played in the United Kingdom and is the third tier of the sport for Rugby Football League (RFL) affiliated clubs. The sponsors for the league are the bookmakers, Betfred and the league will continue to be known as the Betfred League 1.