Mother Mary Company is a St. Louis, Missouri-based maker of guitar accessories and small-batch musical gear. The brand is best known for its hand-bleached fabric guitar straps, where each piece is produced in-house so that every cut and batch is one of a kind. Their catalog has expanded to include gig bags, cables, apparel and merchandise, and a custom shop offering personalized designs.

The company has also produced limited runs of effects pedals, with circuitry built by a local electronics builder known as Croytone and enclosure artwork sourced from St. Louis-area artists. Products are sold through the brand's own webstore as well as Reverb and select retailers such as Guitar Center.

Mother Mary Company has 1 product cataloged on Equipboard, including Fuzz Effects Pedals.