Fantome FX is a French boutique effects pedal company that hand-builds and assembles its products in France. The brand was founded by Nicolas, an electronics technician turned photojournalist who first launched the project as Little Factory in 2009 before renaming it Fantome in 2022. Each pedal is hand-wired in small batches and tested individually before shipping.

The lineup focuses on dirt circuits — fuzzes, boosts, and overdrives — with models such as the ETHER treble booster, TIGER overboost, RINOD and HIND overdrives, CYCLONE "Ocean" fuzz, BLACKBIRD "Supersonic" fuzz, SPECTRE, THE RED MOUNTAIN, THUNDERBOLT, and TOMCAT. The CYCLONE blends voicings reminiscent of an Electro-Harmonix Muff and a Fuzz Face, while early designs leaned on germanium transistors before the builder transitioned much of the catalog to silicon. A Custom Shop offers personalized variants.

The brand has built a following in the European boutique pedal scene, and the CYCLONE was featured on the UK-based YouTube program That Pedal Show, helping raise its profile outside France.

Fantome FX has 1 product cataloged on Equipboard, including Overdrive Effects Pedals.