Schiller International University (SIU) is a private, for-profit university with its main campus and administrative headquarters in Tampa, Florida. It is named after the German playwright and philosopher Friedrich Schiller.

It has campuses on two continents in four countries: Tampa, Paris (France), Madrid (Spain), Heidelberg (Germany). Schiller offers associate, bachelor's, and master's degrees. It also offers online degrees through distance learning.

The educational mission of Schiller International University is to prepare students, personally and professionally, for future leadership roles in an international setting.

Schiller was founded in 1964 by Walter Leibrecht as a study-abroad program for Americans living in West Germany. In 1967, Schiller International University opened Madrid and Paris international campuses. Students could move around the two campuses. Two years later, Schiller moved its international campus in Germany to Heidelberg and in 1983 they received accreditation from the Accrediting Council for Independent Colleges and Schools. In 1991, the university opened its international Campus in Tampa, Florida.

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