Gurnos is a community of Merthyr Tydfil County Borough in Wales, United Kingdom. It consists principally of the Gurnos Estate, a large housing estate established by Merthyr Tydfil Council in the early 1950s and expanded over many years. Many of the initial streets were named after trees; such as Oak, Acacia and Rowan. A major expansion took place during the 1970s, including the building of Prince Charles Hospital. Streets on 1970s development were named after flowers and shrubs; such as Lavender, Heather, Lupin and Forsythia, with the exception of the three most recent areas known as Pen-Gurnos, Pen-y-Dre and Pen-y-Fan View. The area built since the 1970s is still often referred to locally as The New Estate.