A trade language was any language used by people of different mother tongues for communication in commercial trade. Some such languages included Sy Bisti, Huttese, Jawa Trade Talk, and Meese Caulf.
- Thrawn: Alliances
- Thrawn, Part I
- Rise of the Rebels
- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars: A New Hope junior novelization
- "Stories in the Sand"—From a Certain Point of View
- Star Wars: Absolutely Everything You Need to Know (First identified as trade language)