Casa Del Vecchio is a Brazilian stringed-instrument maker founded in 1902 by Italian immigrant luthier Angelo Del Vecchio in São Paulo, where the workshop is still based. The company's catalog spans classical guitars, banjos, mandolins, and instruments central to Brazilian popular music such as the cavaquinho and viola caipira, built in a hand-finished style that has changed relatively little over the decades.

The maker is best known internationally for the Dinâmico, a wood-bodied single-cone resophonic guitar introduced in the 1930s. Built with a Brazilian rosewood plywood body and coverplate, a biscuit-style bridge, a wide classical-style neck, and typically strung with nylon or silk-and-steel strings, the Dinâmico produces a warmer, more muted tone than the metal-bodied American resonators it is often compared to. The design has been influential enough that other builders, including luthier Paul McGill, have produced their own interpretations of it.

Chet Atkins was the player most responsible for bringing the Dinâmico to wider attention outside Brazil, after discovering it through the duo Los Indios Tabajaras; he later gifted an instrument to Earl Klugh, who went on to play it extensively. Leo Kottke, Mark Knopfler, Eric Johnson, and Wyclef Jean have also been associated with Del Vecchio resonators, which helped establish the brand's reputation as a distinctive voice in fingerstyle and nylon-string guitar work.

Del Vecchio has 4 products cataloged on Equipboard, including Resonators, Acoustic-Electric Guitars, and Mandolins. Their gear is featured by 2 artists, with the strongest followings in Rock, Folk, World, & Country, and Blues. Notable users include Eric Johnson and Mr Orkester.