Bonn (an independent city in North Rhine-Westphalia, Germany, on the Rhine River; the former capital of West Germany and (until 1999) seat of government of unified Germany)
Bosnia (a geographic region of Bosnia and Herzegovina, consisting of the northern three fourths of the country); Bosnia (a country in southeastern Europe; in full, Bosnia and Herzegovina)
the popular nickname of special inspectors who knocked on doors of suspected welfare cheats in Quebec during the second government of Premier Robert Bourassa, in the 1990s
a French surname, Bougainville; Bougainville (an island of Papua New Guinea; in full, Bougainville Island); Bougainville (an autonomous region of Papua New Guinea; in full, Autonomous Region of Bougainville); Bougainville (a commune of Somme department, Hauts-de-France, France)