Cadi Ayyad University (Arabic: جامعة القاضي عياض, romanized: jāmiʿat al-qāḍī ʿayyāḍ, French: Université Cadi Ayyad), also known as the University of Marrakesh, is a public university in Morocco and one of the largest higher education institutions in the country.

Established in 1978, the university operates a network of institutions across the Marrakesh-Safi region, with campuses located in Marrakesh, Kalaat Sraghna, Essaouira and Safi.

Among its affiliated institutions is the École nationale des sciences appliquées de Marrakech (ENSA Marrakech), established in 2000 by the Ministry of Higher Education and specializing in engineering education and scientific research.

Since its establishment in 1978, Cadi Ayyad University has developed a network of higher education institutions across the Marrakesh-Safi region. These include:

The number of students enrolled in Marrakesh is reported to be 41,669.

As part of the Morocco Oukaimeden Sky Survey (MOSS) project, Cadi Ayyad University has contributed to the discovery of several astronomical objects, including comets and a near-Earth object (NEO). The university also lent its name to the asteroid 2007 NQ3, in reference to Cadi Ayyad.

The first major discovery was the comet P/2011 W2 (Rinner), observed on 25 November 2011 using a 500 mm telescope at the Oukaimeden Observatory. Another comet, C/2012 CH17 (MOSS), was identified in February 2012.

A near-Earth asteroid was also detected during the night of 15–16 November 2011 using a telescope associated with the MOSS project.