HSU or Hsu may refer to:

Surname Chinese surnames romanized Hsü in the Wade-Giles system: Xu (surname 徐) ( Xú) Xu (surname 許) (/ Xǔ) Xu (surname 胥) ( Xū)

Universities Hakim Sabzevari University in Sabzevar, Iran Hang Seng University of Hong Kong in Hong Kong, China Hardin–Simmons University in Abilene, Texas, United States Health Sciences University (Bournemouth, UK) Helmut Schmidt University in Hamburg, Germany Henderson State University in Arkadelphia, Arkansas, United States Humboldt State University, former name of California State Polytechnic University, Humboldt in Arcata, California, United States Penn State Harrisburg in Middletown, Dauphin County, Pennsylvania, United States Hansung University in Seoul, South Korea

Other uses Croatian Party of Pensioners (Hrvatska stranka umirovljenika), a political party Health Services Union, an Australian trade union High Security Unit, a closed prison in Lexington, Kentucky, United States

See also Xu (disambiguation)