UTB may stand for:

• The University of Texas at Brownsville (formerly known as UTB/TSC)
• USCG Utility Boat
• Under the Blacklight
• Universidad Tecnológica de Bolívar
• Universiti Teknologi Brunei
• Uzina Tractorul Braşov (Braşov Tractor Factory), a Romanian producer of tractors
• United Television Broadcasting Systems
• Untribium, a hypothetical chemical element
• "Under the Bridge", a song by the Red Hot Chili Peppers
• United Television Broadcasting, a TV channel in California

• G.W. McLennan
• G. W. McLennan
• GWM Florid
• G. W. Mordecai
• G. W. Morgenthaler
• Gwna Group
• Gwna Melange
• Gwna Mélange
• Gwoiden language
• Gwoira language
• Gwollu
• Gwomu language
• Gwon Chang-Suk
• Gwon Han-na
• Gwon Han-Na
• Gwon Ik-hyeon
• Gwon Ik-Hyeon
• Gwon Jung-hyeon
• Gwon Jung-Hyeon
• Gwon (Korean surname)
• Gwon Ram
• Gwon Sangha
• Gwonseon District
• Gwon Su-Hyeon
• G. Wood, Son & Co.