Adelphi University is a small, private, nonsectarian university located in Garden City, in Nassau County, New York, United States. Adelphi also has centers in Manhattan, Hudson Valley, and Suffolk County. It is the oldest institution of higher education in suburban Long Island.

Colleges, schools and degrees

• College of Arts and Sciences: B.A., B.S., B.F.A., M.A., M.S., M.F.A.,
• University College: A.A., A.S., A.A.S., B.A., B.S., Post-baccalaureate Certificate, M.S.
• Gordon F. Derner Institute of Advanced Psychological Studies: B.A., M.A., Ph.D.
• Ruth S. Ammon School of Education: B.A., B.S., M.A., Advanced Certificates, Au.D., Ph.D.
• Robert B Willumstad School of Business: B.S., B.A., B.B.A., M.S., M.B.A., M.S./M.B.A. (with School of Nursing).
• College of Nursing and Public Health: B.S., M.S., M.S./M.B.A. (with School of Business), Ph.D.
• School of Social Work: B.S.W., M.S.W., D.S.W., Ph.D.
• Honors College