Former entities

• Ostrobothnia (historical province)
  Ostrobothnia (historical province)
  Ostrobothnia, and , is a historical province of Finland to the west and north in Finland. It borders on Karelia, Savonia, Tavastia and Satakunda in the south, and on Västerbotten in Sweden, and Laponia in the north...
  
   formerly called Pohjanmaa, a Historical province of Finland (until 1809 belonging to Sweden)
• Österbotten County
  Österbotten County
  The Province of Vaasa was a province of Finland , established in 1776 when Finland was an integrated part of Sweden and disbanded in 1997. The province was named after the city of Vaasa....
  
   (Pohjanmaan lääni), a former County of Sweden

Current entities

• Northern Ostrobothnia
  Northern Ostrobothnia
  Northern Ostrobothnia is a region of Finland. It borders to the regions Lapland, Kainuu, Northern Savonia, Central Finland and Central Ostrobothnia.- Municipalities :Main article: Municipalities of Northern Ostrobothnia...
  
   (Pohjois-Pohjanmaan maakunta), a current Region of Finland
• Southern Ostrobothnia
  Southern Ostrobothnia
  Southern Ostrobothnia is one of the 20 regions of Finland.Seinäjoki is the regional centre and by far the largest city in the area.- Historical provinces :For History, Geography and Culture see: Ostrobothnia- Municipalities :...
  
   (Etelä-Pohjanmaan maakunta), a current Region of Finland
• Ostrobothnia (region)
  Ostrobothnia (region)
  Ostrobothnia is a region of Finland. It is located in Western Finland. It borders the regions Central Ostrobothnia, Southern Ostrobothnia, and Satakunta and is one of the four regions making up the historical province of Ostrobothnia....
  
   (Pohjanmaan maakunta), a current Region of Finland
• Central Ostrobothnia
  Central Ostrobothnia
  Central Ostrobothnia is a region in Finland. It borders to the regions Ostrobothnia, Northern Ostrobothnia, Central Finland, Southern Ostrobothnia.- Historical provinces :For History, Geography and Culture see: Ostrobothnia- Municipalities :...
  
   (Keski-Pohjanmaan maakunta), a current Region of Finland

Other

• Pojama, a class of frigates from the 18th century, and namesake for:
• Finnish minelayer Pohjanmaa, the flagship of the Finnish Navy
• Po-Jama People, a song by Frank Zappa
  Frank Zappa
  Frank Vincent Zappa was an American composer, singer-songwriter, electric guitarist, record producer and film director. In a career spanning more than 30 years, Zappa wrote rock, jazz, orchestral and musique concrète works. He also directed feature-length films and music videos, and designed...