The INTOSAI Development Initiative is a body of the International Organization of Supreme Audit Institutions (INTOSAI) which supports capacity development of supreme audit institutions (SAIs) in developing countries.

Founded in 1986, the INTOSAI Development Initiative engages in a variety of support activities for SAIs around the world, including delivering online and in-person training, holding workshops, developing global public goods, and improving engagement between SAIs and stakeholders.

It is also working with SAIs in monitoring the implementation of the Sustainable Development Goals.