National Bureau of Investigation

National Bureau of Investigation may refer to the following:
 * National Bureau of Investigation (Finland)
 * National Bureau of Investigation (Philippines)
 * National Bureau of Investigation (Sweden)
 * National Bureau of Investigation (Ukraine)
 * Central Bureau of Investigation (India)
 * Federal Bureau of Investigation (United States)
 * Police Bureau of Investigation (Bangladesh)
 * Rwanda Investigation Bureau
 * Central Investigation Bureau (Nepal)
 * Central Bureau of Investigation and Statistics (Republic of China (1912–1949))
 * Ministry of Justice Investigation Bureau (Taiwan)
 * Bureau of Investigation and Statistics (Republic of China (1912–1949))
 * Military Intelligence Bureau (Taiwan)
 * Criminal Investigation Agency (Indonesia)
 * Federal Investigation Agency (Pakistan)
 * National Investigation Agency (India)
 * Investigation Agency-ICTBD (Bangladesh)