Iona University () is a private Catholic university with a main campus in New Rochelle, New York, United States. It was founded in 1940 by the Congregation of Christian Brothers and occupies a campus of 45 acres (0.18 km²) in New Rochelle and a campus of 28 acres (0.11 km²) in Bronxville, New York.

Iona University offers more than 60 undergraduate programs and 45 graduate programs in the School of Arts & Science, LaPenta School of Business and the NewYork-Presbyterian Iona School of Health Sciences. It also offers graduate courses in Manhattan and has 14 study abroad programs. As of academic year 2018–2019, the institution enrolled approximately 4,000 undergraduate and graduate students from diverse backgrounds representing 35 states and 47 countries of origin.