The 2015 National Premier League Northern NSW season was played over 18 rounds.
The bottom team was relegated to the 2016 Northern NSW State League Division 1.
Promoted for 2015 are Maitland FC, who were previously in the top tier of Northern NSW football in 2002.
[1] In a change for 2015, the top four teams in the league will contest the semi-finals, which will be conducted over two legs.
The top team at the end of the year is promoted to the 2016 National Premier Leagues Northern NSW, subject to meeting criteria.