Crédit Agricole Corporate and Investment Bank (Crédit Agricole CIB, formerly Calyon) is Crédit Agricole's corporate and investment banking entity. With a staff of 13,000 employees in 58 countries, Crédit Agricole CIB is active in a broad range of capital markets, investment banking and financing activities. Clients are primarily corporates, governments, and banks, with a small footprint in the investor segment.

Calyon was created in May 2004 by the transfer of assets from Crédit Lyonnais' Corporate and Investment Banking division to Crédit Agricole Indosuez (CAI), which had been created in 1996 with the purchase of Banque Indosuez by Crédit Agricole.

As of 6 February 2010, Calyon changed its name to Credit Agricole Corporate and Investment Bank (Crédit Agricole CIB).

Its activities are grouped into two major divisions: the Capital Markets & Investment Banking Division and the Financing Division.

In September 2007, a Crédit Agricole CIB New York trader lost the firm €250M (US$320M). He had taken unusual positions beyond authorization and delegation. He was fired, as well as five other salaried employees from the firm's New York branch.