The Halton Catholic District School Board (HCDSB) community is mourning the unexpected passing of Nancy Dinolfo, a long-serving Superintendent of School Services whose decades of dedication to Catholic education left a significant impact across Ontario. She died on June 8, 2026, in Oakville, Ontario, prompting widespread tributes from colleagues, educators, students, and families who remember her as a respected leader and mentor.

Nancy Dinolfo devoted more than 30 years to the HCDSB, serving in multiple roles throughout her career, including teacher, Vice-Principal, Principal, and ultimately Superintendent of Education. In her most recent role as Superintendent of School Services, a position she held since October 2020, she contributed to the development and oversight of programs designed to support student achievement, well-being, and overall school community development.

According to tributes from the board and colleagues, Dinolfo was widely regarded as a compassionate and thoughtful administrator who consistently placed students and families at the center of decision-making. Her leadership style emphasized accessibility, collaboration, and care for the individuals within the school system.

Throughout her tenure, she was also recognized as a mentor to fellow educators, supporting professional development and encouraging growth among staff. Colleagues described her as someone who combined professional expertise with humility and a strong commitment to service.

Following news of her passing, the HCDSB issued a public statement acknowledging her contributions and expressing condolences to her family and loved ones. In recognition of her service, flags at HCDSB schools and the Catholic Education Centre were lowered to half-mast.

Messages of condolence have since circulated within the education community, reflecting on her long-standing influence on school culture and leadership within the board. Her impact is being remembered not only in administrative achievements but also in the relationships she built throughout her career.

Dinolfo’s passing has been felt deeply across the Catholic education community, where she played a key role in shaping student-focused initiatives and fostering supportive learning environments.

She is being remembered as an educator, leader, and mentor whose career was defined by service, integrity, and dedication to others. While her death leaves a significant void within the HCDSB, her legacy is expected to endure through the systems, programs, and individuals she helped shape.

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Disclaimer

This summary is based on publicly shared and preliminary information. Details regarding the circumstances of death and related tributes are subject to confirmation and may be updated as official statements are released. Readers should note that not all information may be fully verified at the time of publication.