USU

USU or Usu may refer to:
 * Universal Student Unionism (Australia)
 * Usu (mortar), a Japanese mortar

Science and Technology

 * Unseptunium, a hypothetical chemical element with symbol Usu

Universities

 * Universidade Santa Úrsula (Brazil)
 * Utah State University (Logan, Utah)
 * Ulyanovsk State University (Ulyanovsk, Russia)
 * Uniformed Services University
 * University of Sydney Union
 * Ural State University aka Ural A.M. Gorky State University (Russia)
 * United States University
 * Uttarakhand Sanskrit University, a state university in Uttarakhand, India
 * University of North Sumatra in Medan, Indonesia

Places

 * Mount Usu, a volcanic mountain in Hokkaido, Japan
 * Ushu, a mainland city that supplied the city of Tyre, called in the Amarna Letters Usu
 * Wusu, a city in Xinjiang, China
 * Francisco B. Reyes Airport, serving Coron and Busuanga Island, Palawan Province, Philippines (IATA code USU)

Computers

 * USU Software, a German software and IT business
 * USU (operating system), a Bulgarian linux distribution