NPB (disambiguation)

Nippon Professional Baseball (NPB) is the highest level of professional baseball in Japan.

NPB can also refer to:
 * NAS Parallel Benchmarks, a set of benchmarks developed by the NASA for measuring the performance of supercomputers
 * National Printing Bureau of Japan
 * National Pork Board of the United States
 * Nederlandsche Padvinders Bond, one of the scouting organizations that evolved into Scouting Nederland
 * Newport Beach a city in Orange County, California, United States
 * Nitrate-producing bacteria, also known as nitrifying bacteria in the nitrogen cycle
 * Northern Black Polished Ware, a period of South Asian history (c. 700–200 BC)
 * Parole Board of Canada, a Canadian government agency
 * NPB or n-PB, n-propyl bromide, solvent
 * Network packet broker, a network monitoring system