Dr. No Effects is a handmade guitar pedal builder founded in 2003 in Eindhoven, Netherlands. The brand operates under the pseudonymous "Dr. No," who hand-builds each pedal one at a time, emphasizing small-batch craft and unconventional enclosure design over mass production. The company's aesthetic leans heavily on art-object presentation, with pedals housed in sculpted skulls, toy cars, foam blocks, and brain-shaped casings.

The lineup spans fuzz, drive, delay, filter, and boost circuits, with notable pedals including the Turd Fuzz, Moon Canyon (a combined drive/loop/delay/reverb), Mother Brain Delay, Art Skullfuzz, Evil MotherFuzzer, and the Voodoo Skullfuzz. Signature and artist-collaboration models form a significant part of the catalog, including the Brian Ray "Brain Ray," the Ruben Block Colossus Booster + Octavia, and the Troy Van Leeuwen Raven filter/booster.

Dr. No pedals are sold direct from the builder's webshop and through boutique retailers, and the brand has built a niche reputation among players seeking rare, hand-assembled fuzz and experimental effects rather than production-line gear.

Dr. No Effects has 3 products cataloged on Equipboard, including Multi Effects Pedals. Their gear is featured by 4 artists, with the strongest followings in Rock and Pop. Notable users include Wes Borland, Alain Johannes, and Ruben Block.