Mentone Grammar has an active community-minded student body with all students encouraged to take part in community service and volunteering, either formally or informally at school or outside school.

There is an active Community Service Group which is made up of dedicated student volunteers supported by teaching staff, who undertake a busy program of activities throughout the school year, providing opportunities for extremely rewarding ways to make a difference in people's lives.

Examples of activities the group organise, facilitate or support include visits to Ozanam House and Sacred Heart Mission, the Forty-hour famine, Can Drive, Legacy, Remembrance and Anzac Day appeals, Mornington Youth Enterprises, Camp week and local and international fundraising.

Many of our students are also involved in the wider community, including a very large contingent who participate in local Life Saving Clubs, Scouting, sporting and other community groups. Mentone Grammar also maintains a long tradition of association and support of the local RSL club.

The Mentone Grammar community is very generous, raising thousands of dollars for the bushfire appeal following the Black Saturday fires in 2009. Individual students are also personally involved in special fundraising initiatives for the Cancer Council's Australia's Biggest Morning Tea and the Blue Ribbon Day appeal, with these issues being close to those student's hearts.