NBB

NBB can mean:


 * The Naked Brothers Band (disambiguation), various subjects
 * National Bank of Bahrain
 * National Bank of Belgium, the central bank of Belgium since 1850
 * National Biodiesel Board, a biodiesel interest organization headquartered in Jefferson City, Missouri
 * New Basket Brindisi, a professional men's basketball club in Brindisi, Italy
 * Nomura Babcock & Brown, Japanese investment firm
 * Normal buffer base, a blood value
 * The Notorious Boo-Boys, supporters of Bohemian F.C.
 * Novo Basquete Brasil, the top-level Brazilian men's basketball league
 * Newburgh–Beacon Bridge
 * New Bullards Bar Dam and New Bullards Bar Reservoir in Northern California