The Giardino Montano Linasia (9,000 m²) is a nature preserve and botanical garden located at 720 meters altitude near Monte Linas in San Benedetto, Iglesias, Province of Carbonia-Iglesias, Sardinia, Italy. Opening days depend on the time of year; an admission fee is charged.

The garden was established in 1989 by the Ente Foreste della Sardegna, and realized in 1992 in collaboration with the Istituto di Botanica dell'Università di Cagliari. It is organized into four major sections as follows: open areas; wooded areas; riparian vegetation; and endemic plant collection. Plants are labeled with scientific names and geographic origins.

The garden contains roughly 60 species of endemic plants, as well as some 20 species of nonnative introductions.

Endemic species include:

• List of botanical gardens in Italy

• Giardino Montano Linasia
• Musei Provincia Cagliari entry (Italian)
• Guida al Giardino Montano Linasia e alle Foreste Demaniali di Marganai, Montimannu e Gutturu Pala-Pubusinu, Azienda Foreste Demaniali della Regione Sarda, Servizio Amm.ne Cagliari, 1995.

39°19′N 8°32′E / 39.317°N 8.533°E / 39.317; 8.533