The meaning of the Acronym GRR is...

GRR is

• Game Room Rebels

More Meanings For GRR:

• Gifted Resource Room
• Gifted Resource Room
• Asia Tigers Fund, Inc.
• Grizzly River Run
• Kent County International Airport, Grand Rapids, Michigan
• Gravel Road Ride
• Give Ring And Run
• Granule For Reconstitution
• Game Room Rebels
• Kent County International Airport, Grand Rapids, Michigan USA
• Georgetown Railroad Company

GRR is also in:

• Airport Codes
• Chat
• Funnies
• Libraries
• NYSE Symbols
• Physiology
• Railroads
• Sports
• Transportation
• Universities