INB (disambiguation)

INB may refer to:
 * INB, a locally owned, privately held national bank based in Springfield, Illinois
 * INB Financial Corporation, an Indianapolis-based statewide bank
 * Instituto Nacional de Bioinformática, the Spanish National Bioinformatics Institute
 * Independence Airport (Belize), the IATA code INB
 * Inter National Bank, a U.S. bank headquartered in McAllen, Texas
 * Intergovernmental negotiating body, established by the World Health Organization for an International Treaty on Pandemic Prevention, Preparedness and Response (working title)
 * inb, the ISO 639-3 code for Inga Kichwa