LNB

LNB may refer to:

Sport

 * Liga Nacional de Baloncesto, a professional basketball league in the Dominican Republic
 * Liga Nacional de Básquetbol, an Argentine basketball league
 * Liga Nacional de Básquetbol, a Paraguayan basketball league
 * Ligue Nationale de Basket, the governing body of men's basketball in France
 * Ligue Nationale de Basket (Switzerland), a Swiss professional basketball league

Other uses

 * Laredo National Bank, an American commercial bank
 * Level of neutral buoyancy
 * Low-noise block downconverter
 * Mbalanhu dialect of the Ovambo language
 * National Library of Latvia (Latvian: Latvijas Nacionālā bibliotēka)