Catholic Conference (MIAA)
The Catholic Conference is a Massachusetts high school athletic conference whose member institutions are located primarily in Eastern part of Massachusetts. Its five members include only all-boys Catholic high schools. The Catholic Conference participates in the Massachusetts Interscholastic Athletic Association Division I in sports competitions.
The Catholic Conference is regarded as one of the most accomplished sports conferences in terms of its winning reputation, with 17 state football championships, 9 basketball championships, 34 ice hockey championships, and 15 swimming championships.
Member schools
Current members
The Catholic Conference consists of 5 member institutions located in Eastern Massachusetts. Listed in alphabetical order, these 4 cities within the Catholic Conference's geographical footprint are Hingham, Danvers, and Westwood. The geographic domain of the conference is predominantly within Eastern Massachusetts and stretches from Westwood in the west to Hingham in the east and from Danvers in the north to Westwood in the south.Since July 1, 1998, the 9 members of the Catholic Conference are:
Former members
Ice hockey
The Catholic Conference boasts very strong hockey programs. The conference has combined to win the Super Eight Hockey Tournament 21 times since its inception in 1991. Catholic Memorial has won the tournament 13 times, Boston College High School has won 5 times, and Malden Catholic has won 5 times.Super Eight Championships
| School | Appearances | Wins | Losses | Championships | Years Won |
| Catholic Memorial School | 17 | 61 | 15 | 13 | 2009, 2005, 2004, 2003, 2001, 2000, 1999, 1998, 1995, 1994, 1993, 1992, 1991 |
| Malden Catholic High School | 8 | 29 | 6 | 5 | 2016, 2014, 2013, 2012, 2011 |
| Boston College High School | 14 | 48 | 18 | 6 | 2019, 2018, 2007, 2006, 2002, 1996 |
| St. John's Preparatory School | 10 | 12 | 18 | 1 | 2015 |
| Xaverian Brothers High School | 2 | 3 | 4 | 0 |