Dead Astronaut FX is a UK-based boutique effects operation that designs and builds guitar pedal circuits, sold both as finished hand-wired units and as PCBs and full kits for DIY builders. The catalog spans fuzz, distortion, overdrive, delay, reverb, chorus, flanger, tremolo, and wah effects, alongside a small range of MIDI drum modules (the Nano-8 and Mega 16) and wah light plates.

The builder is known for etched enclosures and a willingness to support the DIY pedal-building community with bare boards and documentation. Designs include the Chasm Reverb, built around an Accutronics reverb module; the Tremshifter, an optical tremolo with a wah-style filter; the X-Fuzz II; the Skinwalker high-gain distortion; the Dreamtime delay; the Timestream reverb; and the Astrosim cabinet simulator.

The brand has a presence within hobbyist pedal-building circles, with its PCBs discussed on forums such as madbeanpedals and written up by sites like Coda Effects. Products are tagged "Designed by a guitarist, for guitarists," and purchases ship worldwide.

Dead Astronaut FX has 1 product cataloged on Equipboard, including Fuzz Effects Pedals.