OBL or ÖBL may refer to: Basketball Obol Basketball League, former name for the Swedish Basketball League Österreichische Basketball Bundesliga, the top basketball league in Austria Other Osama bin Laden (1957–2011), founder of the al-Qaeda militant organization Zoersel-Oostmalle Airfield, Belgium (IATA code) Oblique case, a grammatical case Obligate wetland plant, a wetland indicator status Österreichisches Biographisches Lexikon 1815–1950, a biographical dictionary of individuals who've contributed to the history of Austria One Bank Limited, a Bangladeshi bank Oblo language of northern Cameroon (ISO 639-3 code: obl)