The Canadian Public Accountability Board (abbreviated CPAB) is a federal agency which oversees Canadian accounting firms which do auditing work, including leading firms such as BDO Dunwoody LLP, Deloitte LLP, Ernst & Young, Grant Thornton Canada, KPMG LLP and PricewaterhouseCoopers LLP, all of which audit financial statements of publicly-traded companies.

A 2007-8 review by CPAB of these six auditing firms revealed that of 130 audit files examined, 11 were found to have deficiencies.