JES is an acronym that may stand for:
- Java Enterprise System, a major computer suite of the Sun Java System brand
- Journalism ethics and standards
- Job Entry Subsystem 2/3
- Junulara Esperanto-Semajno, a yearly central European Esperanto meeting
- Joel Elias Spingarn, chairman of the NAACPcouncils.
- Joint Electronic Submission system
JES may also refer to:
- Jes Brieden, singer and songwriter, known professionally as JES.
- Producciones JES, a Colombian programadora from 1964 to 2000