WMB may refer to:

• The IATA code for Warrnambool Airport in Australian state of Victoria
• The IBM WebSphere Message Broker software
• The ISO 639 code for the Wambaya language spoken in the Australian Northern Territory
• The Wetzikon–Meilen tramway in the Swiss canton of Zürich
• The Western Mustang Band, a marching band for Western University in London, Ontario, Canada

• Pigniu
• Pigniu GR
• Pigniu (Graubünden)
• Pigniu (Grisons)
• Pigniu, Switzerland
• Pignoise
• Pignol
• Pignola
• Pignolata
• Pignolia nut
• Pignolia nuts
• Pignolias
• Pignoli nut
• Pignoli nuts
• Pignolo (macaroon)
• Pignone
• Pignone anti-tank mines
• Pignone mine P-1
• Pignone mine P-2
• Pignose
• Pignose frog
• Pignus
• Pignut hickory
• Pig 'N' Whistle
• Pigo