The following core values have been identified as important ideals for the Trinity College community.
These core values have been articulated in the College's Strategic Plan.

• A boys' school dedicated to developing young men of character who are independent, committed and compassionate, and who learn to have the courage of their convictions.
• A school which gives priority and opportunities for the development in students of a personal spirituality leading to an active Catholic faith.
• A school which values and fosters in its students a responsible spirit of independent learning.
  A centre of excellence which has high standards and sets high expectations for all members of its community.
• A school which offers in its curriculum a wide range of courses, experiences and challenges for personal growth and achievement.
• A campus where the ministry of service is encouraged and practised.
• An inclusive community which values each individual member and welcomes poor and marginalised families.