Ruabon Moor is an area of upland moorland to the west of Wrexham.

On the northern fringes are the mountains of Minera and Esclusham, at the southern edge the limestone cliffs of Creigiau Eglwyseg overlook the River Dee and the Vale of Llangollen. On the western side the moors reach their greatest height of 565m at Cyrn-y-Brain with Llandegla Forest, a large conifer plantation, covering the north-western side. Ruabon Moor lies partly in Wrexham County Borough and partly within Denbighshire County. It makes up the northern part of the Berwyn and South Clwyd Mountains SAC, which is the largest area of blanket bog and European dry heath in Wales spanning a total of 27000ha. The range of hills known as Llantysilio Mountain, along with Ruabon Moor, Eglwyseg escarpment, Minera caves and areas of grassland to the north and west of Minera are designated as the Ruabon, Llantysilio Mountains & Minera SSSI which sits within the Clwydian Range and Dee Valley AONB. The primary purpose of the AONB is to conserve and enhance the natural beauty which includes not just the landscape but also flora, fauna and geological features. The area has been identified as a Geological Conservation Review site (GCR) for its important geological features.