Dirty Boy is a boutique guitar effects pedal maker based in Pasadena, California. The brand was founded in the early 2000s by Alex Saraceno — the father of rock guitarist Blues Saraceno — and built a reputation around hand-wired germanium and silicon circuits designed to capture vintage fuzz, overdrive, and preamp tones. The company was later revived under musician and product designer Danny Gomez, who is associated with Tube Amp Emulation (TAE) technology.

The lineup centers on distortion, fuzz, and drive pedals, including the Dirty Boy Preamp, Germanium Boy, Buzzy Boy, Afro Fuzz, Ball Buster, Dirty Double, Smoothy, Stone Boy, Tone Bully, and Octo '59. Each unit is assembled and calibrated by hand, with germanium transistor selection playing a central role in the voicing of the fuzz-oriented models. The brand also produces a small run of apparel and has offered limited guitar models such as the TV24 and Dir-Tv.

Dirty Boy pedals have been used by John Frusciante and Neal Schon, who have favored the Germanium Boy fuzz, and the brand's circuits have appeared on sessions and recordings involving artists such as Blues Saraceno, Phil X, Tim Pierce, Mark Lettieri, and players associated with Linkin Park.

Dirty Boy has 11 products cataloged on Equipboard, including Fuzz Effects Pedals, Boost Effects Pedals, and Bass Effects Pedals. Their gear is featured by 6 artists, with the strongest followings in Rock, Electronic, and Pop. Notable users include Blues Saraceno, John Frusciante, and Thomas DeLonge.