100 Japanese Surnames Perfect for Samurai Characters

Updated May 13, 2026

Japanese samurai surnames aren't invented — every one belonged to a real warrior family who left fingerprints across centuries of history. Below are 100 of them, organised by where each clan stood: the Three Great Unifiers, the major Sengoku daimyo, the Edo-period retainers of the Tokugawa, the regional southern and northern clans, the legendary sword schools, and the lesser-known houses still vivid enough to wear in fiction. Use them straight, mix them across regions, or pair them with a given name from the same era — all of these are attested in primary sources.

The Three Great Unifiers (16th–17th century)

These three families unified a fractured Japan in succession. If your character touches the highest stakes of the Sengoku era, the surname will likely come from this short list — or be borrowed in tribute.

Oda— Nobunaga's clan — the demon king of Owari.
Toyotomi— Hideyoshi's chosen surname — a peasant-born regent.
Tokugawa— Ieyasu's clan — 250 years of shogunate.
Matsudaira— Tokugawa's original surname; many branch retainers kept it.

Major Sengoku daimyō (the 'Warring States' lords)

The big chess pieces of the 1500s. Pick a region first, then a clan — each one anchors to a real territory and a real rivalry.

Takeda— Tiger of Kai — Shingen's clan.
Uesugi— Dragon of Echigo — Kenshin's adopted name.
Hōjō— Late Hōjō of Odawara — masters of castle defence.
Imagawa— Suruga lord destroyed by Oda at Okehazama.
Mōri— Western lord; ruled most of the Chūgoku region.
Saitō— Mino lord; Dōsan, the 'viper'.
Asakura— Echizen — destroyed by Nobunaga.
Azai— North Ōmi — Nagamasa, married Oda's sister.
Akechi— Mitsuhide — the man who killed Nobunaga.
Date— One-eyed dragon of the north (Masamune).
Mogami— Dewa province — northern peers of Date.
Ashina— Aizu region — wiped out by Date.
Nanbu— Far north (modern Iwate / Aomori).
Tsugaru— Cousins-turned-rivals of Nanbu.
Chōsokabe— Shikoku unifier; Motochika.
Ryūzōji— Hizen — northern Kyūshū.
Ōtomo— Bungo — early Christian daimyō.
Shimazu— Satsuma — southernmost clan, last to submit to Hideyoshi.
Amago— San'in region — eventually swallowed by Mōri.
Murakami— Pirate clan of the Inland Sea.
Yamana— Once held a third of Japan; declined in Sengoku.
Ōuchi— Yamaguchi — trade port to Korea and China.
Hatakeyama— Old Ashikaga vassal; fragmented in Sengoku.
Hosokawa— Kyoto — sophisticated tea-and-poetry clan; still extant.

Tokugawa-era retainers (the Edo bureaucracy)

Once the wars ended, these were the families running the shogunate. Cooler heads, sharper letters, and very long memories. Many became hatamoto (direct retainers) and held domains for 250+ years.

Honda— Tadakatsu — Tokugawa's iron general.
Sakai— One of the Four Heavenly Kings of Ieyasu.
Ii— Red Devils of Hikone — Naomasa.
Sakakibara— Another Tokugawa Heavenly King.
Ōkubo— Tadayo — early Edo administrator.
Mizuno— Tokugawa maternal line.
Mitsui— Merchant-aristocrat house; later the zaibatsu.
Toda— Mikawa retainers.
Naitō— Mino retainers; Iga ninja patrons.
Itakura— Kyoto deputies (shoshidai).
Doi— Edo elder; Toshikatsu.
Abe— Ōta-han; respected administrators.
Inoue— Hamamatsu and Tatebayashi domains.
Hayashi— Confucian scholar-officials of the shogunate.
Ōta— Engineer of early Edo (rebuilt the castle).
Inaba— Tokugawa retainer turned daimyō at Yodo.

Sword schools and legendary swordsmen

When your character isn't about politics but the duel, lean here. Each surname is anchored to a documented school (ryūha) and named master.

Yagyū— Shinkage-ryū; shogunate sword instructors.
Miyamoto— Musashi — the most famous duellist in Japan.
Itō— Ittō-ryū founder Ittōsai Kagehisa.
Tsukahara— Bokuden — early Sengoku master.
Kamiizumi— Founder of Shinkage-ryū (Yagyū's teacher).
Sasaki— Kojirō — Musashi's famous opponent.
Iizasa— Founder of Tenshin Shōden Katori Shintō-ryū (Japan's oldest extant school).
Hayashizaki— Founder of iaidō / iaijutsu.
Ono— Ono-ha Ittō-ryū — shogunate school.
Chiba— Hokushin Ittō-ryū — Bakumatsu era master Shūsaku.

47 Rōnin, Bakumatsu & Shinsengumi (popular in fiction)

The pop-culture goldmine: late-Edo to early Meiji. Hugely over-represented in samurai movies, anime and games. Pick from here if your character is the brooding revolutionary or doomed loyalist.

Asano— Akō lord of the 47 Rōnin tale.
Ōishi— Kuranosuke — leader of the 47 Rōnin.
Kira— The antagonist of the 47 Rōnin story.
Kondō— Isami — Shinsengumi commander.
Hijikata— Toshizō — vice-commander, fought to the bitter end at Hakodate.
Okita— Sōji — youngest captain; died young of tuberculosis.
Saitō— Hajime — Shinsengumi swordsman, survived Meiji.
Sakamoto— Ryōma — Tosa rōnin who brokered the alliance that ended the shogunate.
Saigō— Takamori — last samurai of Satsuma.
Katsu— Kaishū — bridge between shogunate and Meiji.
Yamaoka— Tesshū — swordsman who negotiated Edo's surrender.

Other historically attested clans (broaden the cast)

Less famous but real — useful for secondary characters, rivals, retainers and minor lords.

Maeda— Kaga — second-largest domain in Edo period.
Kuroda— Chikuzen — Kanbei, brilliant strategist for Hideyoshi.
Katō— Kiyomasa — fierce tiger-hunter of Kumamoto.
Fukushima— Masanori — one of Hideyoshi's young commanders.
Ikeda— Bizen lord; descends from Oda retainers.
Yamauchi— Tosa lord (modern Kōchi).
Niwa— Nagahide — close Oda retainer.
Wakisaka— Yasuharu — Sekigahara turncoat.
Hosokawa— Yūsai — poet warrior of Kyoto.
Kobayakawa— Hideaki — the Sekigahara turncoat that broke the western army.
Yūki— Hideyasu's adoptive surname (Tokugawa branch).
Ogasawara— Etiquette masters of the samurai class.
Kōno— Iyo (Shikoku) — pre-Sengoku coastal clan.
Mizoguchi— Echigo retainers.
Kuki— Sea lords — Ise navy commanders.
Nitta— Ashikaga's pre-shogunate rivals; eternally re-claimed by impostors.
Imagawa— (re-listed in big leagues but worth noting their long pre-Sengoku lineage).
Ashikaga— Second shogunate house — the failing dynasty of Sengoku.
Minamoto— Original shogunate house — invoked as ancestry by many later clans.
Taira— The Heike — defeated by the Minamoto in the Genpei War.
Nanjō— San'in region; pinned between Mōri and Amago.
Hatano— Tanba province; destroyed by Akechi.
Bessho— Harima — resisted Hideyoshi at the Siege of Miki.
Sōma— Northeastern clan, survived through Meiji as a peerage family.
Yagi— Ōmi retainer line.
Ujiie— Mino retainers; the 'Three Men of Mino' served Saitō.