IBA or Iba may mean:* Henry Iba, an American basketball coach Important Bird Area Incinerator bottom ash Independent Broadcasting Authority Indole-3-butyric acid - auxin, a plant rooting hormone InfiniBand Architecture Institute of Business Administration Interceptor Body Armor International Bank of Asia International Bar Association International Bartenders Association, which set out IBA Official Cocktail regulation International Basketball Association International Bear Association… (More on Iba)