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: )