Pohjanmaa (, ) may refer to:

Regions

  • Pohjanmaa or Ostrobothnia (historical province), a traditional region () in Finland
  • Pohjanmaan lääni or Ostrobothnia County, a county of Sweden from 1634 to 1775
  • Modern regions:
  • Pohjanmaan maakunta or Ostrobothnia (administrative region), a region of Finland
  • Pohjois-Pohjanmaan maakunta or North Ostrobothnia, a region of Finland
  • Etelä-Pohjanmaan maakunta or South Ostrobothnia, a region of Finland
  • Keski-Pohjanmaan maakunta or Central Ostrobothnia, a region of Finland

Ships

  • Pohjanmaa or Pojama, a type of Swedish warship in the late 18th and early 19th centuries
  • Finnish minelayer Pohjanmaa, a former flagship of the Finnish Navy
  • Pohjanmaa-class corvette, an upcoming surface combatant class of the Finnish Navy

See also

  • Ostrobothnia (disambiguation)