The ACC Championship is an all association elimination tournament culminating in the crowning of the ACC Champion School in each sport. The ACC Championship was introduced in 2019.
The ACC Championship offered the following competitions in 2021:
- Basketball - Junior Boys and Girls Y7-9 and Senior Boys and Girls Y10-12 teams
- Soccer - Senior Boys and Girls Y10-12 teams
- Netball - Senior Girls Y10-12 teams
Teams nominations are open to all ACC member schools.