ADU or Adu may refer to:
People:
- Adu (surname)
Places:
- Ardabil Airport (IATA: ADU)
Miscellanea:
- In metadata the acronym Application Discovery and Understanding
- Ammonium Diuranate Ammonium diuranate
- Analog-to-digital converter or Analog-to-digital unit
- Average Daily User
Universities:
- Abu Dhabi University
- Adamson University of Manila
- Afghan Defense University
- ArsDigita University at MIT