Prudencio Sáez is a Spanish guitar workshop founded in 1963 by luthier Prudencio Sáez in Torrent, in the province of Valencia. The family business, which trades as Guisama S.L., is now run by the third generation under Prudencio Sáez Marín, and continues to build instruments using traditional handcrafted methods drawn from the long Valencian guitar-making tradition.

The workshop produces a broad range of classical and flamenco guitars, from entry-level student models to all-solid concert instruments, alongside electrified cutaway nylon-string guitars for amplified performance. Notable lines include the numbered classical series (such as the PS-3-S all-solid spruce/mahogany model and the Model 4A), the Recital Luthier Series, and dedicated flamenco blanca and negra builds. Instruments are typically made with Spanish cedar or spruce tops paired with mahogany, sapele, or rosewood backs and sides.

Prudencio Sáez guitars are widely distributed through specialist Spanish guitar retailers in Europe, North America, and Asia, and the brand is generally associated with affordable, traditionally voiced Spanish-built nylon-string guitars rather than high-end concert instruments from individual master luthiers.

Prudencio Saez has 2 products cataloged on Equipboard, including Acoustic-Electric Guitars and Classical & Nylon-String Guitars.