List of fortresses in Korea
Korea has a variety of fortresses, including sanseong (mountain fortress), jinseong (camp fortress), and eupseong (city fortress).

Ancient 

 Hwando Fortress () in present-day Wandu
 Sanggyeong () in present-day Ning'an, then capital of Balhae
 Hwangryong Fortress ()
 Achasanseong ()  
 Namhansanseong ()
 Busosanseong Fortress, Buyeo () in present-day Buyeo, then third capital of Baekje.
 Wiryeseong () in present-day Seoul, then first capital of Baekje.
 Seoul Mongchontoseong ()
 Seoul Pungnap-dong Toseong ()
 Gyeongju Wolseong ()
 Samnyeon Sanseong Fortress, Boeun ()
 Doksan Fortress () in present-day Osan

Joseon era 

Castles in Korea
Korea geography-related lists