Jack Deville Electronics is a boutique guitar effects pedal operation founded in 2008 by engineer Jack Deville and based in southeast Portland, Oregon. The original Jack Deville-branded pedal line ran from 2008 through mid-2012 and comprised a small catalog of hand-built designs, including the Dark Echo modulated delay, the Buzzmaster discrete high-gain germanium fuzz, the Deuce Coupe overdrive with a second-stage clean boost, and the Mod Zero — a fully analog, through-zero modulation unit that combined flanging, chorusing, rotary-speaker, and vibrato effects into a single enclosure.

The pedals earned a reputation among boutique enthusiasts for their circuit design and limited production runs, with units like the Mod Zero becoming collector pieces due to short production quantities. Coverage in outlets such as Premier Guitar and strong secondary-market demand on platforms like Reverb helped establish the brand's standing in the pedal community.

In mid-2012, Jack Deville shifted focus and launched Mr. Black Pedals as a division of Jack Deville LLC, which became the primary consumer-facing product line. The parent company, Jack Deville LLC, continues to operate as an audio processor and control system design and manufacturing firm, offering engineering, consulting, and contract manufacturing services alongside its in-house brands.

Jack Deville has 3 products cataloged on Equipboard, including Delay Effects Pedals, Multi Effects Pedals, and Overdrive Effects Pedals. Their gear is featured by 3 artists, with the strongest followings in Rock and Electronic. Notable users include Charlie Hilton, Joe Satriani, and Markus Reuter.