DBL may refer to: Deep Belly Laughs Double Cheese Burger Dansk Biografisk Leksikon, a Danish biographical dictionary Dashing Buffalo, a professional League of Legends team based in Ho Chi Minh City, Vietnam Database Management Library, a C++ object-oriented programming library dBase Language, the computer language implemented by dBASE Plus, dB2K, and Visual dBASE software Design-based learning, a modern pedagogy Devizes branch line, a defunct railway line running from Holt to Pewsey from 1857 to 1966 Digital Bibliography & Library Project's DBL-Browser Don Bosco High & Technical School, Liluah, an all-boys, English medium school near the city of Kolkata, India Double (disambiguation), various meanings Double bottom line, an accounting framework that measures fiscal performance Drawing Black Lines, the second album by American Post-Hardcore band, Project 86 Drexel Burnham Lambert, an investment bank Dunstan Baby Language, a theory about early baby language Dyirbal language, ISO 639-3 language code dbl Sports DBL Arena Darwin Baseball League, Northern Territory, Australia Development Basketball League, a basketball league for middle and high school students in Indonesia Dominet Bank Ekstraliga, a former sponsored name of the Polish Basketball League Dutch Basketball League, the top professional basketball league in the Netherlands See also Down by Law (disambiguation)