IUP may refer to:
- Indiana University of Pennsylvania, a public research university in Indiana County, Pennsylvania
- IUP Crimson Hawks, the intercollegiate athletic program of the above school
- IUP Portfolio, a Swedish short for individual development plan
- IUP (software), a computer software that provides a portable, scriptable toolkit for GUI building.
- Industrial Union Party
- Interconnect User Part, UK specific SS7 protocol
- Inter-University Program for Chinese Language Study at Tsinghua University
- Intrauterine Pregnancy, the normal location for a pregnancy to occur
- Intrinsically unstructured protein
- Irish Unionist Party, an alternate name for the Irish Unionist Alliance, a political party founded in 1891.
- Initial Upper Paleolithic, the earliest culture of modern humans in Europe
This disambiguation page lists articles associated with the title IUP.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: