Von Frankenstein Monster Gear is a guitar and bass accessories company founded by Misfits guitarist Doyle Wolfgang Von Frankenstein. The brand's catalog centers on electric guitar and bass strings, pickups, and related accessories aimed at high-gain and heavy players.

Their flagship pickup, the Von Frankenstein Monster Humbucker, was developed in collaboration with pickup designer JD Mauro of Route 30 Pickups and features 12 custom hex bolt pole pieces, three oversized ceramic magnets, and custom-wound bobbins, with an average inductance of 7.4H and resistance around 13.3 kOhms. The string line includes vacuum-sealed nickel-plated electric guitar sets, with signature gauges such as the Abominator (.010–.060), Decapitaters (.010–.065), and Monsters (.010–.052), plus signature string sets developed with players including Gary Holt and Jeff Loomis, and the BeastMode bass string series.

The brand is sold direct through its own site as well as through retailers such as Guitar Center, Musician's Friend, and Reverb, and is closely tied to Doyle's own playing style and heavy, aggressive tone.

Von Frankenstein Monster Gear has 9 products cataloged on Equipboard, including Strings. Their gear is featured by 4 artists, with the strongest followings in Rock and Metal. Notable users include Doyle Wolfgang von Frankenstein, Jeff Loomis, and Gary Holt.