Goemon Ishikawa XIII (Japanese: 十三代目 石川 五ェ門 or 十三代目 石川 五ヱ門, Hepburn: Jūsan-daime Ishikawa Goemon) is a fictional character created by Monkey Punch for his manga series Lupin III, which debuted in Weekly Manga Action on August 10, 1967.

He is famous for a reticent personality coupled by apparent unlimited skill in martial arts and swordsmanship with his sword Ryusei (流星), known in the anime as Zantetsuken (斬鉄剣).

Monkey Punch stated that, as none of the existing cast seemed especially Asian, he added Goemon as "a very traditional Japanese male character" to balance the manga.

Lupin then captures and seduces his rival's wife, and uses the information gleaned to rescue Goemon, who slays his captor with Jigen's help.

Using his trademark Zantetsuken sword (carried in an unadorned shirasaya without a hand guard) he has the ability to cut through virtually any substance, even flying bullets, steel girders, automobiles, and multi-storied buildings.

(またつまらぬ物を斬ってしまった, Mata tsumaranu mono o kitte shimatta) Goemon has an extreme sense of pride in his abilities, and when he cannot accomplish a task, feels shame and remorse afterward.

Even under threat or when locked up, he is typically seated on the floor in a state of mental seclusion so deep he cannot be budged from his position.

Other activities Goemon favors include fishing, attending noh theater, listening to enka jazz, and participating in martial arts competitions.

Although typically a person of mellow aloofness, Goemon has been seen exploding with frustration, admiring beautiful women, and (very rarely) screaming in fright.

At the same time, he fears sultry women will distract him from his training, and tends to blush or flee when any woman puts him in a less-than-modest situation.

[7] William Ross voiced Goemon in the 1979 Toho English dub of The Mystery of Mamo, where his name was changed to "Samurai".

Entertainment dub for spinoff movie Goemon's Blood Spray, which features a different cast for the rest of the main roles.

"[citation needed] Apparently due to the demand of fans world over, this idea was scrapped and the completed film features Gō Ayano as a swordsman wearing robes similar to his drawn and animated counterparts.