The Memorial University of Newfoundland Students' Union Act (1968) incorporated the Students' Union (MUNSU) as the official students' union representing undergraduate students at the University's St. John's campus.

The Students' Union provides a range of advocacy work to improve the lives of its members and increase accessibility of post-secondary education. It lobbies all levels of government and other decision-making bodies and organizes campaigns around these and other issues which are important to the membership. It also provides services to improve the quality of student life: the Copy Centre, the Attic (Used Bookstore and Postal Service), Health and Dental Insurance, Safe Drive / WalkSafe, the Student Handbook/Dayplanner, Breezeway Bar, CHMR-FM radio, and others. The cost of services are partially funded by Students' Union fees paid by each undergraduate students upon registration. The Students' Union also operates over a 100 student clubs and societies organized around a wide range of academic and extracurricular interests. MUNSU assists students on an individual basis to resolve student aid as well as academic-based problems and appeals. Through the offices of the Director of Advocacy, problems with appeals, assessments, repayment, and general complaints in these areas are addressed.

The Students' Union offers free legal services to students during a semester and a legal aid supervisor is available for appointment. These sessions are not considered extended legal counsel. Students who have more serious issues may be referred to the MUNSU lawyer, for one free consultation, per issue, per semester.

MUNSU has established and provides funding for a number of Resource Centres on campus: Women's Resource Centre (WRC), International Students' Centre (ISC), Lesbian-Bisexual-Gay-Transgenerdered Resource Centre (LBGT-MUN), MUN DISC (Disability Information and Support Centre), Students Older than Average (SOTA), Student Parents Resource Centre, and the Aboriginal Students' Centre. The Students' Union also operates over a 100 student clubs organized around a wide range of academic and extracurricular activities.

The Students' Union is also a member of the Canadian Federation of Students (CFS) representing over half a million students across Canada. Visit MUNSU online at www.munsu.ca.