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 1388 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 Bomarsundin 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
See also
Vyborg Castle