RAB's a three letter acronym that may refer to: Aomori Broadcasting Corporation, formally named Radio Aomori Broadcasting (RAB) Royal Artillery Barracks in London Rapid Action Battalion (RAB), a special security force in Bangladesh Regulus Arcturus Black, a character in the Harry Potter book series RAB, team code for Rabobank (cycling) professional cycling team in the Netherlands Radio Aomori Broadcasting, aka Aomori Broadcasting Corporation in Japan RABabies, an animated series created by… (More on Rab)