| 2012 National Conference League | |
| League: | National Conference League |
| No Of Teams: | 51 |
| Season: | 2012 Season |
| Season Champs: | Wath Brow Hornets |
| Season Champ Name: | Champions |
| League Leaders: | Wath Brow Hornets |
| League Leaders Name: | League Leaders |
| Prevseason Link: | 2010–11 Rugby League Conference |
| Prevseason Year: | 2010–11 |
| Nextseason Link: | 2013 National Conference League |
| Nextseason Year: | 2013 |
The 2012 National Conference League was the 27th season of the National Conference League, the top league for British amateur rugby league clubs, and was the first season that the league was played in the summer.
The league was expanded to four tiers for the first time, with the new Division Three largely consisting of teams from the former Rugby League Conference National Division.
The Premier Division featured three new clubs:
Division One featured six new clubs:
Division Two featured five new clubs:
Of the ten clubs in the newly formed Division Three, seven joined from the former Rugby League Conference National Division and two teams were promoted from the RLC Premier Divisions (Bristol Sonics and St Albans Centurions). The tenth club, South Wales Hornets, were a newly founded team. The Grand Final winners were Hemel Stags, defeating Underbank Rangers 17–10.
At the end of the season, all clubs apart from Underbank Rangers and Coventry Bears withdrew from the league for various reasons: