Sound Project "SIVA" is a boutique effects pedal brand based in Kitakyushu, Fukuoka, Japan, founded and run by Hiroshi Ozawa, who handles design, building, and assembly himself. The brand is known for its "ita-effector" aesthetic — pedals decorated with original manga and anime-style character artwork — paired with hand-wired analog circuits aimed at guitar and bass players.

The lineup centers on overdrive, distortion, boost, and buffer pedals, often released as limited runs with their own illustrated character and tagline. Models include the "Please train me as you like" boutique boost with a 2-band EQ, the "Be strong!! Cheer up!!" distortion, the "With Me, You Can Win!" distortion, and the "Unexpected Overdrive" overdrive, alongside dedicated guitar and bass buffer pedals. The brand also offers DIY pedal kits and repair services through its site.

Distribution outside Japan runs primarily through StompFox in the United States and through Reverb listings, and the brand has appeared at NAMM via the Effector Box collective. The combination of niche Japanese boutique circuitry with anime cover art has given Sound Project "SIVA" a small but distinct following among collectors of art-forward pedals.

Sound Project Siva has 3 products cataloged on Equipboard, including Overdrive Effects Pedals and Delay Effects Pedals.