Kyushu & Okinawa Castles

九州・沖縄

Kyushu and Okinawa sit at the crossroads of Japanese and continental Asian culture, and their castles reflect centuries of trade, diplomacy, and conflict with China, Korea, and Southeast Asia. The Ryukyu Kingdom's gusuku stone castles of Okinawa are a UNESCO-listed tradition entirely distinct from mainland Japanese castle architecture, while Kyushu's fortresses bear the scars of the Korean invasions and the final stand of the Shimazu clan. This region offers castle experiences found nowhere else in Japan.

35 castles
0 original towers
20 free entry

Prefectures

Fukuoka, Saga, Nagasaki, Kumamoto, Oita, Miyazaki, Kagoshima, Okinawa

Kumamoto Castle

熊本城 · Kumamoto-jo

Ruins

📍 Kumamoto — Kyushu

Japan's mightiest castle complex — proven in battle, broken by earthquake, and rising again through one of history's most ambitious restoration projects.

B Tourism 75/100
A Defense 88/100
View →

Shuri Castle

首里城 · Shuri-jo

Ruins

📍 Okinawa — Kyushu

Japan's most unique castle — a crimson Ryukyuan palace that is simultaneously a UNESCO site, a symbol of Okinawan identity, and a monument under reconstruction after its 2019 destruction.

B Tourism 72/100
C Defense 60/100
View →

Kokura Castle

小倉城 · Kokura-jo

Ruins

📍 Fukuoka — Kyushu

The castle city that was nearly atomic history — Kokura survives as the backdrop to Miyamoto Musashi's most famous duel and the bomb that went to Nagasaki instead.

C Tourism 62/100
D Defense 50/100
View →

Shimabara Castle

島原城 · Shimabara-jo

Ruins

📍 Nagasaki — Kyushu

The castle whose oppressive taxation triggered Japan's largest civil war — a Christian peasant revolt that shut Japan off from the Western world for 200 years.

C Tourism 60/100
D Defense 58/100
View →

Fukuoka Castle

福岡城 · Fukuoka-jo

Ruins

📍 Fukuoka — Kyushu

One of Kyushu's largest castle complexes, now a cherry blossom park overlooking the bay where the Mongol armadas once appeared on the horizon.

D Tourism 58/100
D Defense 55/100
View →

Hirado Castle

平戸城 · Hirado-jo

Ruins

📍 Nagasaki — Kyushu

Japan's first Western trading port — where Portuguese, Dutch, and English merchants anchored for a century before Japan closed its doors to the world.

D Tourism 55/100
D Defense 52/100
View →

Kagoshima Castle

鹿児島城 · Kagoshima-jo

Ruins

📍 Kagoshima — Kyushu

The deliberately tower-less fortress of Japan's greatest samurai clan — 700 years of Shimazu rule, two Meiji Restoration leaders, and Saigo Takamori's last stand on the hill behind.

D Tourism 55/100
F Defense 35/100
View →

Karatsu Castle

唐津城 · Karatsu-jo

Ruins

📍 Saga — Kyushu

Kyushu's 'floating castle' — a white tower on a sea-facing hill above Japan's finest pine beach, with one of Japan's greatest autumn festivals.

D Tourism 55/100
D Defense 45/100
View →

Obi Castle

飫肥城 · Obi-jo

Ruins

📍 Miyazaki — Kyushu

Southern Japan's most charming castle town — a cedar-forest compound, well-preserved samurai streets, and Obi tempura, all largely unknown to foreign visitors.

D Tourism 52/100
D Defense 45/100
View →

Yanagawa Castle

柳川城 · Yanagawa-jo

Ruins

📍 Fukuoka — Kyushu

Where the moats became the tourist attraction — Yanagawa's 470 km of castle canals now carry donkobune sightseeing boats through the same water-fortress that once protected the Tachibana clan.

D Tourism 52/100
D Defense 45/100
View →

Nakijin Castle

今帰仁城 · Nakijin-jo

Ruins

📍 Okinawa — Kyushu

The former capital of the Northern Kingdom — 1.5 km of limestone walls on a sea cape, UNESCO-listed, with Japan's earliest cherry blossoms in January.

D Tourism 50/100
B Defense 70/100
View →

Oka Castle

岡城 · Oka-jo

Ruins

📍 Oita — Kyushu

The castle that inspired Japan's most beloved song — moonlit stone walls above sheer ravine cliffs, where Rentaro Taki heard the melancholy of fallen glory.

D Tourism 50/100
B Defense 72/100
View →

Hizen-Nagoya Castle

肥前名護屋城 · Hizen-Nagoya-jo

Ruins

📍 Saga — Kyushu

The vanished capital of Hideyoshi's Korean invasion — briefly the second-largest castle in Japan, then deliberately demolished, now one of the most historically haunting ruins in Kyushu.

D Tourism 50/100
C Defense 62/100
View →

Saga Castle

佐賀城 · Saga-jo

Ruins

📍 Saga — Kyushu

A flatland castle with minimal surviving defenses, but its reconstructed wooden palace is Japan's largest of its kind — and the Nabeshima clan's story quietly shaped modern Japan.

D Tourism 48/100
F Defense 35/100
View →

Nakagusuku Castle

中城城 · Nakagusuku-jo

Ruins

📍 Okinawa — Kyushu

Okinawa's finest Ryukyuan stone walls — a completely different castle tradition from mainland Japan, UNESCO-listed, on a ridge with views to both oceans.

D Tourism 48/100
B Defense 72/100
View →

Zakimi Castle

座喜味城 · Zakimi-jo

Ruins

📍 Okinawa — Kyushu

The finest gusuku walls in Okinawa — Gosamaru's masterwork of curved limestone and a double-arched gate, free and open around the clock.

D Tourism 48/100
C Defense 62/100
View →

Kitsuki Castle

杵築城 · Kitsuki-jo

Ruins

📍 Oita — Kyushu

Japan's 'sandwich castle' — perched on a narrow plateau between two valleys, with one of Kyushu's finest preserved samurai townscapes below.

D Tourism 48/100
D Defense 50/100
View →

Nakatsu Castle

中津城 · Nakatsu-jo

Ruins

📍 Oita — Kyushu

The sea castle built by Japan's greatest strategist, in the hometown of the man whose face graces the 10,000-yen note — Nakatsu is depth hiding behind a modest exterior.

D Tourism 45/100
D Defense 52/100
View →

Usuki Castle

臼杵城 · Usuki-jo

Ruins

📍 Oita — Kyushu

Otomo Sorin's island castle in Usuki Bay — overshadowed by its own neighborhood, where ancient stone Buddhas of National Treasure status wait in a forest ravine.

D Tourism 45/100
D Defense 50/100
View →

Katsuren Castle

勝連城 · Katsuren-jo

Ruins

📍 Okinawa — Kyushu

Amawari's maritime fortress — a UNESCO limestone gusuku with ocean views in three directions and Roman coins in the ruins.

D Tourism 45/100
C Defense 68/100
View →

Hara Castle

原城 · Hara-jo

Ruins

📍 Nagasaki — Kyushu

Where 37,000 rebels made Japan's last Christian stand in 1638 — a UNESCO World Heritage site of faith, fire, and the birth of sakoku isolation.

D Tourism 45/100
D Defense 55/100
View →

Hitoyoshi Castle

人吉城 · Hitoyoshi-jo

Ruins

📍 Kumamoto — Kyushu

The castle with Japan's only overhang stone walls — 700 years of Sagara clan rule in a mountain valley, now recovering from devastating 2020 flood damage.

D Tourism 42/100
D Defense 55/100
View →

Chiran Castle

知覧城 · Chiran-jo

Ruins

📍 Kagoshima — Kyushu

The Shimazu clan's most complete castle town — samurai gardens, mountain ruins, and the most affecting war memorial in southern Japan.

D Tourism 42/100
C Defense 62/100
View →

Oita Funai Castle

大分府内城 · Oita Funai-jo

Ruins

📍 Oita — Kyushu

Where Francis Xavier met Japan's first Christian daimyo — Funai Castle's four surviving turrets guard a site where medieval Japan and European Catholicism collided most dramatically.

F Tourism 38/100
F Defense 35/100
View →

Yatsushiro Castle

八代城 · Yatsushiro-jo

Ruins

📍 Kumamoto — Kyushu

The Hosokawa clan's southern Kyushu stronghold — with the best water-moat stone wall combination in the region and spectacular cherry blossoms.

F Tourism 38/100
D Defense 45/100
View →

Omura Castle

大村城 · Omura-jo

Ruins

📍 Nagasaki — Kyushu

The castle of Japan's first Christian daimyo — the man who gave a tiny fishing village called Nagasaki to the Portuguese and changed the country's history.

F Tourism 38/100
D Defense 42/100
View →

Tomioka Castle

富岡城 · Tomioka-jo

Ruins

📍 Kumamoto — Kyushu

Where Japan's last Christian rebellion besieged the island fortress — Tomioka Castle at the heart of the Shimabara Rebellion and Japan's 'Hidden Christian' heritage.

F Tourism 38/100
D Defense 45/100
View →

Nobeoka Castle

延岡城 · Nobeoka-jo

Ruins

📍 Miyazaki — Kyushu

A modest ruin with a dark legend — the 'thousand-person killing stone wall' castle of southern Miyazaki, rarely visited but genuinely historical.

F Tourism 35/100
D Defense 45/100
View →

Uto Castle

宇土城 · Uto-jo

Ruins

📍 Kumamoto — Kyushu

Konishi Yukinaga's coastal stronghold — whose stone was stolen for Kumamoto Castle and whose Christian lord chose execution over apostasy.

F Tourism 35/100
D Defense 45/100
View →

Urasoe Castle (Urasoe Youdore)

浦添城 · Urasoe-jo

Ruins

📍 Okinawa — Kyushu

The royal seat before Shuri — Ryukyu's original capital, where kings ruled for 200 years and carved their tombs into the limestone cliff below their castle.

F Tourism 35/100
D Defense 52/100
View →

Kurume Castle

久留米城 · Kurume-jo

Ruins

📍 Fukuoka — Kyushu

Where Kyushu's largest river was the western moat — the Arima clan's domain seat is now a famous shrine, hiding good stone walls and 270 years of Chikugo history.

F Tourism 35/100
D Defense 40/100
View →

Sadowara Castle

佐土原城 · Sadowara-jo

Ruins

📍 Miyazaki — Kyushu

A Shimazu branch castle guarding the northeastern frontier of the most formidable samurai clan in Kyushu, with views to the Pacific from the mountain summit.

F Tourism 32/100
D Defense 48/100
View →

Saiki Castle

佐伯城 · Saiki-jo

Ruins

📍 Oita — Kyushu

A well-preserved mountain castle above the Saiki Bay rias coast, with excellent stone walls and panoramic views over one of southern Oita's most scenic inlets.

F Tourism 32/100
D Defense 52/100
View →

Kaneda Castle

金田城 · Kaneda-jo

Ruins

📍 Nagasaki — Kyushu

Japan's oldest major fortress — 667 AD stone walls on a remote island in the Korea Strait, built by imperial order after Japan's first recorded naval defeat.

F Tourism 30/100
B Defense 72/100
View →

Tonokori Castle (Miyakonojo Castle)

都之城 · Tonokori-jo

Ruins

📍 Miyazaki — Kyushu

Where the Ito clan's Sengoku domain collapsed in 1578 — the castle at the center of southern Kyushu's most dramatic feudal reversal, now a quiet park above the Kirishima volcanoes.

F Tourism 30/100
D Defense 45/100
View →