The meaning of the Acronym GMB is...

GMB is

• General Municipal and Boilermakers

More Meanings For GMB:

• Grain Marketing Board
• Green Man Book
• Generator Mother Board
• General Municipal Boilermakers
• General Membership Branch
• General Municipal and Boilermakers
• Gambela, Ethiopia

GMB is also in:

• Airport Codes
• Farming
• Firms
• Funnies
• Non-Profit Organizations
• Unions