IUP

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