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Diana C. Miles

Chief Executive Officer, The Law Society of Ontario


Diana Miles is the Chief Executive Officer of the Law Society of Ontario. The Law Society licenses, regulates, and disciplines Ontario’s more than 57,000 lawyers and 9,000 paralegals pursuant to the Law Society Act and the Law Society’s Rules of Professional Conduct, by-laws, regulations, and guidelines.

Diana joined the Law Society in 2001 as the Executive Director of Professional Competence, and has also held concurrent positions in the organization including Executive Director, Organizational Strategy, Executive Director of Communications and Executive Director of Professional Regulation. Throughout her career with the Law Society, Diana has been responsible for strategic and operational planning, the creation of defensible and valid licensing and credentialing systems, the development and provision of high quality supports and resources for members of the public and licensees, and the regulation and quality assurance of the conduct, competence and practice management of lawyers and paralegals.

Prior to joining the Law Society, Diana was the Chief Operating Officer of a large Toronto law firm and in that capacity, she supported the organization’s governance, business development, client services provision and firm administration.

Diana has extensive governance and board experience, is a Chartered Director (CDir), and has worked with private and not-for-profit boards as a board member and governance facilitator in the education, energy, health care, insurance, and professional services sectors.

Diana was called to the Bar in Ontario in 1990.

Land Acknowledgement

The offices of LAWPRO are located on the traditional territory of many nations including the Mississaugas of the Credit, Anishnabeg, Chippewa, Haudenosaunee and Wendat peoples. Toronto is covered by Treaty 13 with the Mississaugas of the Credit. LAWPRO respects and acknowledges the histories, languages, knowledge systems, and cultures of First Nations, Metis, and Inuit nations.

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