Wex is a collaboratively-edited legal dictionary and encyclopedia.
Wex or WEX may also refer to:
- WEX Inc., a provider of payment processing and information management services
- County Wexford, the Chapman code WEX
- Wechselapparat, a World War I German flamethrower
People with the surname
edit- Michael Wex, Canadian author
- Bernard Wex, English civil engineer
- Marianne Wex, German feminist artist, author, and self-healer