The Ateneo de Davao University (AdDU; Filipino: Pamantasang Ateneo de Davao) is a private Catholic basic and higher education institution in Davao City, Davao del Sur, Philippines. It is run by the Philippine Jesuit Province.

The university has five undergraduate schools: the School of Arts and Sciences, the School of Business and Governance, the School of Engineering and Architecture, the School of Education, and the School of Nursing. The aforementioned schools also run the graduate programs. The College of Law is a separate unit within the university.

The university also runs a grade school and both a junior high and senior high school.

The university was granted "Institutional Accreditation" by the Philippine Accrediting Association of Schools, Colleges, and Universities, an honour only granted to six universities. It also received an autonomous status from the Philippine Commission on Higher Education.