GAB as a three-letter acronym may refer to:
- Georgia Association of Broadcasters, Georgia, United States
- Great American Ball Park, sports stadium in Cincinnati, Ohio, United States
- The Great American Bash, a National Wrestling Alliance and World Championship Wrestling event
- WWE Bash, a World Wrestling Entertainment event, formerly known as "WWE The Great American Bash"
- Gathering of Africa's Best Awards
Gab may refer to:
- Gab (song), an Occitan boasting song of the Middle Ages
- Gabb Drilon, an American-Filipino actor who goes by the name "Gab"
- Gab, meaning to talk much