Dr. John Theis

It is with deep sadness that we share the passing of John Theis of Guelph, on September 27, 2025.

John will be lovingly honoured and remembered by his colleagues. He leaves a legacy of wisdom and love to many close friends, and current and former clients. John was a founding partner of Greenaway Theis & Associates.

In his public life, John wore many hats; as a clergyman, educator, and psychologist. In his private life, he was a devoted husband, father, grandfather, and friend. Whatever the role, John’s life was rooted in service to others. With thoughtful wisdom, kindness, and a good sense of humour, he inspired those around him, challenged others to think deeply, and was a caring leader for his community.

John’s presence, love, and encouragement will be deeply missed, and his legacy lives on in the many lives he touched.

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