DBI may refer to: dBi, decibel isotropic DBI (gene), the gene encoding diazepam binding inhibitor in humans DBI Beverage, a subsidiary of Ingram Entertainment DBI, a company founded by David Belt which now operates as DBI Projects and DBI Construction Consultants Beck Depression Inventory, a psychological test used to measure depression levels Dahabshil Bank International, Somalia Data Bus Inversion - a method of power saving in DDR4 Davies–Bouldin index, a metric for evaluating clustering algorithms Davie-Brown Index, an independent index for brand marketers Delaware Biotechnology Institute, University of Delaware, U.S. Dizionario Biografico degli Italiani, the Biographical Dictionary of the Italians Doppelgänger brand image, Doublewalker in marketing Dubai, a city in the United Arab Emirates Dynamic binary instrumentation, a technique to change programs ISO 639:dbi or Doka, a Plateau language of Nigeria Perl DBI, a database interface for Perl Phenformin, by the trade name DBI