The Ottawa Catholic School Board Mission Statement outlines the philosophy, values and beliefs of the Board. The Mission statement states: "In partnership with home, parish and community, the Ottawa Catholic School Board ensures that the teachings and values of Jesus Christ are integrated in all aspects of school life. By providing the necessary resources for quality Catholic education, the Board supports the development of lifelong learners striving for academic excellence in a nurturing, safe and vibrant community. All individuals are challenged to become responsible and contributing citizens in an increasingly complex and diverse world."

The philosophy of St. Gregory is based on this mission statement. Our school will always be one where the needs of our students are of the utmost importance. We will always be a warm, inviting and caring place. It is a place where the parents can feel that they are an integral part of the school community.