Llanishen Reservoir
 Llanishen Reservoir (Welsh: Cronfa Ddŵr Llanisien) is a Victorian reservoir in North Cardiff in Wales. The reservoir is one of the reservoirs constructed as part of the Taff Fawr scheme for supplying water to Cardiff and was completed in 1886. It forms part of the Nant Fawr Corridor from the top of Roath Park to the countryside beyond Cyncoed.The reservoir was used for water supply until the mid-1970s when it became redundant.