Leadership
School leadership ensures that the school facilities, pedagogy and activities of Loyola create an environment that is conducive to our students becoming intellectually competent, religious, loving, open to growth and committed to doing justice. They support our caring and dedicated faculty and staff to model what is means to be men and women for others.
Marcelle completed her Masters degrees in Religious Education and Educational Administration. She was the first lay principal at both Notre Dame High School, St. Joseph’s College Secondary School for Girls and Little Flower Academy. In 1999, she was appointed to the OISE.
Marcelle DeFreitasPresidentFor the past 125 years, the school’s mission has never wavered from the vision of its founding community: to educate young people to change the world through a life formation that focuses on forming the “whole person”. In Jesuit education, the road to academic excellence extends far beyond the confines of the traditional classroom.
Care for the “whole person” means ensuring students are not just intellectually competent, but that they are open to growth, loving, religious, and committed to doing justice. It means ensuring a balance of intellectual, physical, mental, and spiritual well-being.
For over 125 years, Loyola has fostered student engagement both inside and outside of the classroom. The competence, commitment, compassion, and conscience they have are nurtured by their involvement in all aspects of school life. They carry these qualities forward into life outside the school walls -- with their families, friends, communities and workplaces, and ultimately -- the world.
All of that starts here. The care and experience of our Faculty and Staff, our alumni and older students, provides an environment for Secondary 1 students that is immediately welcoming, stimulating, exciting and will change your child’s life and your family forever.
As our students say, “It is the ride of a lifetime”.
Comme le disent nos étudiants, c’est « une aventure hors du commun ».
Dr. Diachyshyn is a product of a Jesuit education, having graduated from this school in 1996. After receiving degrees in English literature, history, and education, he returned to Loyola. Dr. Diachyshyn has stayed true to the intellectual curiosity instilled in him by his Jesuit formation by completing a Ph.D. in English Literature.
Dr. Mark DiachyshynPrincipalIt is with great pleasure that we announce that the Loyola Board of Governors and the Jesuit Board of Directors approved and ratified the appointment of Dr. Mark Diachyshyn as Principal of Loyola High School starting for the 2022-23 school year. Dr. Diachyshyn is a product of a Jesuit education, having graduated from this school in 1996. After receiving degrees in English literature, history, and education, he returned to Loyola and has been an essential part of the fabric of this school ever since. Dr. Diachyshyn has stayed true to the intellectual curiosity instilled in him by his Jesuit formation by completing a Ph.D. in English Literature.
He has made an invaluable impact on this school, having been Vice-Principal of Academics (Senior School) since 2016, and having previously served as Department Head of English Language Arts. He is unwavering in his faith in God and has an unquestionable devotion to ensuring that our Jesuit, Catholic way of proceeding permeates through all we do.
- Executive Director of Advancement
Scott CorbettAs Executive Director of Advancement, Scott Corbett leads Loyola High School’s Communications, Marketing, Admissions, Fundraising, and Alumni Relations. Guided by a deep commitment to education, he works to ensure that every student receives not only a high-quality education but also an enriching experience that reflects Loyola’s Jesuit mission. Central to his vision is the principle of accessibility — making certain that financial circumstances never prevent a deserving student from attending Loyola.
Before joining Loyola, Scott spent seven years with McGill University’s Advancement team. His earlier career included leadership roles in industrial manufacturing, wholesale distribution, and sporting goods, giving him a broad perspective and a results-driven, collaborative approach.
At Loyola, Scott’s work extends beyond day-to-day responsibilities. He is focused on strengthening the school’s future—building meaningful connections with alumni, parents, and the broader community while ensuring that Loyola remains a place of growth, opportunity, and excellence for generations to come.
- Executive Director of Operations
Dr. Fouad MarounSecretary General of Saint Joseph University (USJ) of Beirut, Dr. Maroun has a background in Civil Engineering with a Master of Engineering from McGill University, an MBA and Executive Doctorate in Business Administration from Université Paris Dauphine, France. In 2004 he founded the highly successful Athletics Department at USJ and created the Beirut Unisports Festival. In his role as Secretary General Dr. Maroun headed multiple executive committees focused on creating and steering USJ’s strategic plan, and streamlining processes at the University.