A chokutō (直刀, "straight sword") is a straight, single-edged Japanese sword that predates the curved katana. If you are trying to tell a chokutō apart from a katana, or deciding whether a straight-blade sword is what you want, the difference comes down to one visible thing: the chokutō's blade is straight, and the katana's is curved. That difference is not a style choice — it tracks a real change in how Japanese swords were used.
What is a chokutō?
Chokutō are the straight swords of Japan's early periods — mainly the Kofun, Nara, and early Heian periods, roughly before the 10th century. The name is descriptive: 直 (choku) means "straight" and 刀 (tō) means "sword" or "blade." In English the word is often written chokuto without the macron.
A chokutō has a single sharp edge and a blunt back. That separates it from the tsurugi (剣), the double-edged straight sword of even earlier Japan. Both are straight; the difference is whether the blade has one edge or two.
Chokutō vs. katana: why the blade curves
The curved blade we now associate with katana swords did not exist from the start. Early Japanese swords were straight. The curve developed during the Heian period as mounted warfare grew: a curved blade is easier to draw and cut with in one motion from horseback, so the straight chokutō gradually gave way to the curved tachi and, later, the katana.
That is the practical shortcut for identification: if the blade is straight and single-edged, it is a chokutō-style sword; if it curves, it sits in the tachi/katana family. Many other details — steel, fittings, length — vary within both groups.
The parts of a chokutō
A chokutō carries the same basic anatomy as later Japanese swords: the blade, the tang (nakago) hidden inside the handle, the handle (tsuka), the guard (tsuba), and the scabbard (saya). Early fittings tended to be plainer than the ornate mountings that came later, but the structure is the same. For a labeled walkthrough of each piece, see our guide to the parts of a katana — the terminology applies to the chokutō as well.
Modern chokutō replicas: what our catalog actually lists
Modern "chokutō" on the market are usually straight-blade swords, and how faithful they are to the historical form varies. Here is what our own listings show as of 2026-11-08 — a small but complete sample of 6 Chokutō-type swords (Shopify product_type "Chokuto"), not a hand-picked selection:
- Profile: all 6 have a straight-blade silhouette — the defining chokutō feature.
- Tang: all 6 are listed as full tang (one-piece construction).
- Sharpness option: all 6 are sold with a Hand Sharpened or Unsharpened choice, plus an optional engraving.
- Steel: 4 of 6 name a specific steel — 1045 carbon steel, 1065 carbon steel, 65 manganese steel (65Mn), and T10 folded steel. The other 2 use generic descriptions ("high performance blade steel" and "hand-polished blade with special process finish").
- Size: 5 of 6 are built at katana proportions — about 103–105 cm overall with a 72 cm blade. One (the T10 folded-steel model) is shorter at 77 cm overall with a 50 cm blade, closer to the historical chokutō scale.
- Blade cross-section: roughly 3.2 cm wide and 0.7 cm thick across the set.
- Price: base prices run from about $201 to $254, with a small surcharge (about $13–14) for the engraved option.
The takeaway for a buyer: the honest "chokutō" signals to check are a straight blade, a stated steel, and a full tang. If those three are present, you are looking at a straight-sword build rather than a curved katana with a renamed profile. Browse our chokuto swords to compare the current lineup, or start from the full Japanese sword types guide if you are still deciding between a straight and a curved blade.
Sources
Historical details above follow the standard references: the Chokutō article on Wikipedia, the Japan Heritage profile of the Heishi Shōrin-ken gold-inlaid straight sword (Shitennō-ji, a national treasure), and the Japan Heritage profile of the straight sword of Kashima Jingū, the largest surviving chokutō. Catalog figures (counts, steel, dimensions, sharpness options, and prices) were read from our own Shopify product data on 2026-11-08.
