Oktober Guitars was a Maryland-based guitar and bass builder founded by luthier Tony Leicht, registered in February 2011 and operating out of the historic Savage Mill in Savage, Maryland. The company began as a small custom shop doing setups, refinishing, and repair work before expanding into a full lineup of electric guitars and basses, sold both as USA hand-built custom instruments and as more affordable Korean-made imports.

The brand became known for aggressive, metal-leaning body shapes with model lines including the Annihilator, Wraith, Raven, Rage, Jackyl, and the Oktober Explorer, alongside a series of 12-string basses sold under the Hades, October, and Oktober names. Its highest-profile release was the Doyle Wolfgang Von Frankenstein Annihilator, a signature instrument designed in collaboration with the Misfits guitarist and offered in both a production version and a USA Custom Shop build with graphite neck-thru construction and glow-in-the-dark skull inlays.

Oktober Guitars also worked with other artists in the metal and hard rock world, including Mark Gallagher of the British band Raven, on faithful recreations of vintage instrument designs. The company ceased operations in late 2016, and its instruments now circulate primarily through the secondhand market.

Oktober has 5 products cataloged on Equipboard, including Solid Body Electric Guitars and Electric Basses. Their gear is featured by 5 artists, with the strongest followings in Rock and Metal. Notable users include Cancerslug, Alex Story, and Doyle Wolfgang von Frankenstein.