The 2008–09 was the 41st season for the Northern Premier League Premier Division, and the second season for the Northern Premier League Division One North and South. As continuing part of non-league restructuring, the Division One South temporarily had 20 teams, while the Division One North contained 21, with a targeted number for both of 22 teams. This naturally affected the number of relegation slots available during the season, as the league attempted to enlarge the size of the divisions at the end of the season.

Premier Division

The Premier Division features six new clubs:

League table

Results

Play-offs

Stadia and Locations

Division One North

The Division One North features six new clubs:

League table

Results

Play-offs

Division One South

The Division One South features seven new clubs:

League table

Results

Play-offs

Cup Results

Challenge Cup: Teams from all 3 divisions. President's Cup: Teams from lower 2 divisions. Chairman's Cup: Between Champions of NPL Division 1 North and NPL Division 1 South.

Peter Swales Shield

The 2009 version of the Peter Swales Shield saw the champions of the 2008–09 NPL Premier Division, Eastwood Town, play against the winners of the 2009 NPL Chairman's Cup, Durham City. Eastwood Town won the match 2–1.