GYB may refer to:

• Garus language, spoken in Papua New Guinea
• Giddings–Lee County Airport, in Texas, United States
• Gymnase intercantonal de la Broye, a secondary school in Payerne, Switzerland

• Jeff Westbrook
• Jeff Weston
• Jeff Whitefoot
• Jeff Whitefoot (rugby player)
• Jeff Whitefoot (soccer footballer)
• Jeff Whittaker
• Jeff Wickersham
• Jeff Wilkins (basketball)
• Jeff William Francis
• Jeff Williams (American football)
• Jeff Williams (musician)
• Jeff Williams (poker player)
• Jeff Willmore
• Jeff Wilson (Survivor)
• Jeff Wincott
• Jeff Winkless
• Jeff Winter
• Jeff Wisoff
• Jeff Woodlock
• Jeff Wood (racing driver)
• Jeff Woywitka
• Jeff Wright
• Jeff Wright (defensive back)
• Jeff Wright (defensive tackle)
• Jeff Wrightson