Bothnia (disambiguation)

Bothnia or Bothnian may refer to:

• Gulf of Bothnia, a gulf of the Baltic Sea between Sweden and Finland
  • Bothnian Bay, the northernmost waters of the gulf
  • Bothnian Sea, the southernmost waters of the gulf
• Provinces in Sweden and Finland named after the gulf:
  • Ostrobothnia (disambiguation), multiple entities
  • West Bothnia, located west of the gulf
  • North Bothnia, located northwest of the gulf
• SS Bothnia, transatlantic steamship (1874–99)
• Bothnia Line, high speed railway in northern Sweden