Massachusetts Interscholastic Athletic Association

The Massachusetts Interscholastic Athletic Association (MIAA) is an organization that sponsors activities in thirty-three sports, comprising 374 public and private high schools in the U.S. state of Massachusetts. The MIAA is a member of the National Federation of State High School Associations (NFHS), which writes the rules for most U.S. high school sports and activities. The MIAA was founded in 1978, and was preceded by both the Massachusetts Secondary School Principals Association (MSSPA) (1942–1978) and the Massachusetts Interscholastic Athletic Council (MIAC) (1950–1978).

Sports and Seasons
Girls wrestling gained MIAA status in 2011. Rugby became the MIAA's 35th sport in 2016, following a 2015 MIAC vote that passed by a wide majority.

Districts & Leagues
The leagues in the MIAA are separated into nine districts (numbered 1-9).

District 1

 * Berkshire County League
 * Pioneer Valley Interscholastic Athletic Conference

District 2

 * Central Massachusetts Conference
 * Colonial Athletic Conference
 * Dual Valley Conference
 * Inter High League
 * South Worcester County League

District 3

 * Midland Wachusett League
 * Worcester County Athletic Conference

District 4

 * Dual County League
 * Merrimack Valley Conference
 * Middlesex League

District 5

 * Cape Ann League
 * Commonwealth Athletic Conference
 * Greater Boston League
 * Northeastern Conference

District 6

 * Boston City League
 * Catholic Central League
 * Catholic Conference

District 7

 * Bay State Conference
 * Hockomock League
 * Tri-Valley League

District 8

 * Mayflower Athletic Conference
 * South Coast Conference
 * Southeast Conference

District 9

 * Cape and Islands League
 * Patriot League
 * South Shore League

Baseball
The MIAA Baseball State Champions are listed below.

Basketball
The state champions for basketball are listed below.

Ice Hockey
The state champions for ice hockey are listed below.

Boys' Swimming & Diving
Boys' Swimming & Diving has been an MIAA sport since 1947, competing in the winter season. Division 2 was added in 1987. The MIAA Boys' Swimming & Diving State Champions are listed below.

Girls' Swimming & Diving
Girls' Swimming & Diving has been an MIAA sport since 1972, beginning solely as a fall season sport. Girls' swimming & diving then expanded to become both a fall and winter season sport beginning in 1991. Division 2 was added in 2004 for the fall season and 2006 for the winter season. The MIAA Girls' Swimming & Diving State Champions are listed below.

Boys Soccer
The MIAA Boys Soccer State Champions are listed below.

Girls Soccer
The MIAA Girls Soccer State Champions are listed below.