ACLEDA Institute of Business (AIB; Khmer: វិទ្យាស្ថានពាណិជ្ជសាស្ត្រអេស៊ីលីដា, UNGEGN: Vĭtyéasthan Péanĕchchôsastr Ésilida) is a business school in Phnom Penh created as a subsidiary firm by ACLEDA Bank, Cambodia's largest financial institution.

[2] The AIB campus sits on 7.57 hectares and consists of six buildings: a canteen, a bookstore, a library, a football field, volleyball and basketball courts and other facilities.

The institute with built with a capacity for accommodating 627 employees and 2,866 students per academic term.

The campus received final certification for Excellence in Design for Greater Efficiencies (EDGE).

The ACLEDA Institute of Business was encouraged by the Minister of Economy, Aun Pornmoniroth, to help Cambodia "increase and develop the human resource capacity and professional training" in the fields of accounting, banking and finance.