The Association to Advance Collegiate Schools of Business (AACSB) is an American professional and accreditation organization.

The American Assembly of Collegiate Schools of Business was founded as an accrediting body in 1916 by a group of seventeen American universities and colleges.

[1]: 2  For many years, the association accredited only American business schools, but in the latter part of the twentieth century adopted a more international approach to business education.

[1]: 2 In January 2015, the Council for Higher Education Accreditation deferred recognition of the association pending satisfaction of its policy requirements,[10] and in July its Committee on Recognition recommended that recognition be denied on the basis that the AACSB had consistently failed to document that it was routinely providing "reliable information to the public on their performance, including student achievement" as CHEA requires.

[citation needed] Since June 2023, the organization's president and chief executive officer has been Lily Bi, who was previously an executive at the Institute of Internal Auditors.