The Brazilian company Indústrias Reunidas Frateschi (known as Frateschi) is a model railroad manufacturer based in Ribeirão Preto, near São Paulo, Brazil. Today Frateschi exports to Argentina, Canada, Chile, Colombia, Peru, Uruguay, United States, France, Spain, Switzerland, South Africa, China, Taiwan, New Zealand and Australia. Frateschi is the only model railroad manufacturer in South America.

Founded in 1958 as a toy factory by Galileu Frateschi, the company originally produced stuffed animals and wooden furniture. This was followed by the first model railway products such as telephone poles and pylons. In 1967, the toy factory Frateschi has been renamed to "Indústrias Reunidas Frateschi Ltda" to concentrate fully on model trains with its core business focused on Brazilian railways (RFFSA, Fepasa, CPEF, EFS, etc.). In 1993 started a cooperation with Atlas and exported to the United States. The company annually organizes summits to promote the brand and gather model railroaders in cities such as Ribeirao Preto, Campinas and São Carlos. The last one in 2017 (13th edition) was held in Bebedouro - SP.

Frateschi produces only HO scale models. The range includes locomotives, passenger and freight cars, railway tracks, and building kits.