Castle Rock Estate is an Australian winery based at Porongurup, in the Great Southern wine region of Western Australia. It is owned and operated by the Diletti family. According to Australian wine writer James Halliday, it has an exceptionally beautifully sited and immaculately maintained vineyard, winery and cellar door sales area with sweeping vistas from the Porongurups.
Castle Rock Estate's winemaker is Rob Diletti, son of founders Angelo and Wendy Diletti. Rob was one of 12 scholars at the 2005 Len Evans Tutorial, 2006 Wine Selectors Young Winemaker of the Year, a finalist for the 2012 Gourmet Traveller WINE Winemaker of the Year and, in 2015, Rob Diletti was named Wine Companion Winemaker of the Year.
In 2018 Castle Rock was award the most successful exhibitor processing under at the 2018 Wine Show of Western Australia.
The winery was awarded: