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Wes or WES may refer to:
Organizations
- World Education Services, United States and Canada (founded 1974)
- Wiltshire Emergency Services, South West England (1998–2014)
- Women's Engineering Society, United Kingdom (founded 1919)
People
- Wes (given name), a list of people and fictional characters so named
- Wes Madiko (1964–2021), Cameroonian musician
- William Wesley (born 1964), American basketball executive
- Wesley "Wes" Correa (born 1962), American–Puerto-Rican basketball player
Places
- Outer Hebrides or Western Isles, IIGA country code
- Wesel (district), Germany (on vehicle registration plates)
- Westmorland, county in England (Chapman code in genealogy)
- WES Commuter Rail, a rail line in Oregon, United States
Science and technology
- Warehouse execution system, in the distribution industry
- Whole exome sequencing, in genomics
- Windows Embedded Standard, an operating system