Ian Therrien
Associate
- Year of Call, Ontario (2023)

Ian Therrien is a tax associate based in the Ottawa office, where he is cultivating a comprehensive practice in both domestic and international taxation. His expertise includes advising clients on tax issues related to financing, corporate reorganizations, and domestic and cross-border mergers and acquisitions.
Ian is currently completing the CPA Canada In-Depth Tax Program.
Before pursuing his legal studies at McGill, Ian earned a degree in Chemical Engineering from the University of Ottawa. During his undergraduate studies, he completed several internships in both the public and private sectors. Ian has also authored multiple peer-reviewed publications in the field of organic electronics and through his work with Canada's Department of National Defence.
Ian is fully fluent in English and French.
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