2021–22 Thai League 3 Northern Region

The 2021–22 Thai League 3 Northern region is a region in the regional stage of the 2021–22 Thai League 3. The tournament was sponsored by Blue Dragon Lottery Online, and known as the Blue Dragon League for sponsorship purposes. A total of 12 teams located in Northern, Upper western, and Upper central of Thailand will compete in the league of the Northern region.

Foreign players
A T3 team could register 3 foreign players from foreign players all around the world. A team can use 3 foreign players on the field in each game.
 * Note :
 * players who released during second leg transfer window;
 * players who registered during second leg transfer window.
 * {|class="unsortable"


 * style="width:15px; background:#ffdddd;"| ||Other foreign players.
 * style="width:15px; background:#ffffdd;"| ||AFC member countries players.
 * style="width:15px; background:#ddffdd;"| ||ASEAN member countries players.
 * style="width:15px; background:#c8ccd1;"| ||No foreign player registered.
 * }
 * style="width:15px; background:#ddffdd;"| ||ASEAN member countries players.
 * style="width:15px; background:#c8ccd1;"| ||No foreign player registered.
 * }
 * }

Top scorers

 * As of 26 February 2022.

Hat-tricks
Notes: (H) = Home team; (A) = Away team

Clean sheets

 * As of 26 February 2022.

Attendances by home match played
Source: Thai League