GLB

GLB may refer to:

• Gay, lesbian and bisexual
• Girls' Life Brigade, a constituent organization of the Girls' Brigade
• Gramm–Leach–Bliley Act of the United States Congress
• Grant Lee Buffalo, an American rock band
• Greatest lower bound
• Great Leap Brewing, a Chinese brewery
• Mercedes-Benz GLB, a sport utility vehicle
• San Carlos Apache Airport, in Arizona, United States
• GLB file format (.glb), the binary form of glTF
• Union of Workers in Food and Allied Industries, a former Austrian trade union
• Gothic & Lolita Bible, a Japanese fashion magazine and book