Abbreviations beginning with r

RBFSRecursive Best-First Search algorithm
Community

RBFSRoll Back the Frontiers of Space
Community » Charity

RBFTRed Baron Flight Training (est. 1983; New South Wales, Australia)
Academic & Science

RBFTRifle Bayonet Fighting Techniques
Governmental

RBFYRevised Budget in Fiscal Year
Miscellaneous » Unclassified

RBGRéseau des Boutiques de Gestion (French: Network of Management Shops)
Academic & Science

RBGRoyal Botanical Gardens
Academic & Science » Botany

RBGRefrigerated Baked Goods
Business

RBGRestaurant Bar Grill
Business » Restaurants

RBGReynolds, Bone, & Griesbeck
Business » Companies & Firms

RBGRhema Broadcasting Group (New Zealand)
Business

RBGRock Bottom Golf (website)
Business

RBGRubber Band Gun
Business » Products

RBGReally Boring Game
Community » Sports

RBGRed Blue and Green (primary colors of light as perceived by humans; less common, usually seen as RGB)
Community

RBGRevolutionary But Gangsta
Community » Music

RBGRoyal Botanic Gardens
Community » Educational

RBGRoyal Botanical Gardens (Burlington, ON)
Community » Educational