The Canadian Imperial Bank of Commerce is a Canadian multinational banking and financial services corporation headquartered at CIBC Square in the Financial District of Toronto, Ontario. The Canadian Imperial Bank of Commerce was formed through the 1961 merger of the Canadian Bank of Commerce and the Imperial Bank of Canada, in the largest merger between chartered banks in Canadian history. It is one of two "Big Five" banks founded in Toronto, the other being the Toronto-Dominion Bank.

CIBC Square is an office complex in the South Core neighbourhood of Toronto, Ontario, Canada. The complex, located on Bay Street south of Front Street, is a joint development of Ivanhoé Cambridge and Hines. It serves as the new global operational headquarters for the Canadian Imperial Bank of Commerce (CIBC), consolidating approximately 15,000 staff from several CIBC-tenanted buildings in the Greater Toronto Area, including its existing headquarters at Commerce Court. The complex also includes the Union Station Bus Terminal constructed on behalf of Metrolinx for GO Transit and other inter-city bus services, connected directly to Union Station. The complex will also include a one-acre park elevated over the rail corridor.