Wex (disambiguation)
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 
 Michael Wex, Canadian author
 Bernard Wex, English civil engineer
 Marianne Wex, German feminist artist, author, and self-healer