After-school, Monument offers a variety of clubs, sports and other extra-curricular activities. In the Students Against Destructive Decisions chapters, students developed a public safety seat belt campaign. In the Girls Learn International chapter, students partnered with the Nasra School in Pakistan and presented on public safety issues at the national conference in New York City. In the Music & Video Production Club, students write, direct and produce music videos. As part of the South Boston Education Complex, students participate in sports and other activities such as the Knights Chess Clubs.

Students are encouraged to participate in the following extracurricular activities. All extracurricular actives provide for a well-rounded high school experience and are important components of college applications and resumes. Monument High School students participate with students in Excel and Odyssey high schools in all sports and extracurricular activities. By combining each of the three schools within one common athletic program, we excel at both the city and state level.

Athletics	After School Activities
Football	Student Government
Basketball	Upward Bound (UMASS Boston)
Volleyball	Peer Mediation / Peer Leadership
Baseball	Video Production
Ice Hockey	Knights Chess Club
Indoor Track	Intramural Basketball
Outdoor Track	Bootcamp
Soccer	WriteBoston
Softball	Learn International

The South Boston Education Complex has a long history of athletic excellence. The following is a list of the various athletic teams and their championships:

Baseball City Champions
1986, 1987, 1990, 1992, 1997

Hockey City Champions
1971 , 1972, 1973, 1974, 1975, 1977, 1078, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1990, 1991, 1992, 1997

Football City Champions
1990, 1991, 1993, 1998

Basketball State Champions
1981, 1982, 1992, 1995, 1996

Boys Track City Champtions
1992 and 1996

Girls Softball City Champions
1977, 1978, 1991