The corporate membership in the Priory of Canada is also referred to as Priory Chapter, and is a representative body of the members of the Order of St. John in Canada (which includes a total of 6,000 members).

Membership on Priory Chapter includes:
The Prior
The Chancellor
The Immediate Past Chancellor
Bailiffs Grand Cross
Dames Grand Cross
Hospitaller
Members of Priory Council
Provincial Representatives of the Order
Immediate Past Vice-Chancellor, Finance & Administration
Immediate Past Vice-Chancellor, Community Services
Other persons appointed with a 2/3 vote of Priory Council

Priory Council (the Board) is the executive arm of Priory Chapter and derives its authority from the Prior of the Order. Priory Council is invested with the power to authorize action in the name of Priory Chapter.

Priory Chapter and Priory Council depend on the work of several standing committees to develop policy recommendations for approval and adoption for the organization.