The community of Brampton and supporters across the country are mourning the loss of Ken Mayhew, the esteemed President and CEO of the William Osler Health System Foundation. Ken passed away on March 3, 2026, leaving behind a profound legacy of leadership, compassion, and unwavering dedication to strengthening healthcare services throughout Ontario and across Canada.
As the driving force behind the Foundation, Ken Mayhew played a pivotal role in advancing fundraising initiatives that directly supported critical hospital programs, state-of-the-art equipment, and expanded patient care services. Under his visionary guidance, the Foundation grew in both reach and impact, fostering strong partnerships with donors, community leaders, and healthcare professionals. His ability to unite people around a shared mission transformed philanthropic support into tangible improvements in patient outcomes.
Colleagues remember Ken not only as a strategic and innovative leader but also as a mentor and friend who led with integrity and humility. His passion for accessible, high-quality healthcare was evident in every project he championed. Beyond boardrooms and campaigns, he remained deeply committed to the well-being of patients and families who relied on the health system.
Tributes have poured in from across the healthcare and philanthropic sectors, honoring a man whose influence extended far beyond his title. Ken Mayhew’s passing leaves a significant void, but his enduring contributions will continue to shape and strengthen healthcare for generations to come.

