List of castles and fortresses in Finland

This is an incomplete list of castles and fortresses in Finland.

Name	Finnish name	Swedish name	Location	Date	Condition	Picture
St. Olaf's Castle	Olavinlinna	Olofsborg	Savonlinna	1475	Largely restored
Turku Castle	Turun linna	Åbo slott	Turku	1280	Largely restored
Häme Castle	Hämeen linna	Tavastehus slott	Hämeenlinna	1320	Largely restored
Suomenlinna	Suomenlinna	Sveaborg	Helsinki	1748	Largely restored
Kastelholm Castle	Kastelholman linna	Kastelholms slott	Åland	1300	Partly ruined
Raseborg Castle	Raaseporin linna	Raseborgs slott	Raseborg	1378	Partly ruined
Hamina Fortress	Haminan Linnoitus	Fredrikshamns fästning	Hamina	1720	Partly ruined
Kärnäkoski Fortress	Kärnäkosken linnoitus	Kärnäkoski fästning	Savitaipale	1791	Partly ruined
Bomarsund Fortress	Bomarsunnin linnoitus	Bomarsunds fästning	Bomarsund	1832	Ruined
Svartholm fortress	Svartholman linnoitus	Svartholms fästning	Loviisa	1749	Partly ruined
Ruotsinsalmi sea fortress	Ruotsinsalmen merilinnoitus	Svensksunds sjöfästning	Kotka	1794	Partly ruined
Hakoinen Castle	Hakoisten linna	Haga borg	Janakkala	500 BCE	Totally ruined
Kajaani Castle	Kajaanin linna	Kajana borg	Kajaani	1604	Mostly ruined
Kuusisto Castle	Kuusiston linna	Kustö biskopsborg	Kaarina	1400	Mostly ruined
Brahelinna	Brahelinna	Braheslott	Ristiina	1646	Mostly ruined
Lieto Castle	Liedon linna	Lieto borg	Lieto	1500 BCE	Totally ruined
Stenberga Castle	Stenberin linna	Stenberga slott	Masku	1200	Totally ruined
Liinmaa Castle	Liinmaan linna	Vreghdenborg	Eurajoki	14th century	Totally ruined
Kokemäki Castle	Kokemäen linna	Kumo slott	Kokemäki	1324	Totally ruined
Oulu Castle	Oulun linna	Uleåborgs slott	Oulu	1375	Totally ruined
Sibbesborg	Sipoon linna	Sibbesborg	Sipoo	1400	Totally ruined
Junkarsborg	Junkarsborgin linnoitus	Junkarsborg	Karis	1500	Totally ruined