The meaning of the Acronym GTU is...

GTU is

• Gamma Theta Upsilon
• Grand Touring Under
• Great Tomcat Unification

More Meanings For GTU:

• Graduate Theological Union
• Gamma Theta Upsilon
• Grand Touring Under
• Great Tomcat Unification
• Glycol Trim Unit
• Ground Transportation Unit

GTU is also in:

• NASA
• Transportation
• Unfiled
• Universities