Coordinates: 51°38′38″N 3°25′37″W / 51.644°N 3.427°W
Rhondda is a constituency of the National Assembly for Wales. It elects one Assembly Member by the first past the post method of election. Also, however, it is one of eight constituencies in the South Wales Central electoral region, which elects four additional members, in addition to eight constituency members, to produce a degree of proportional representation for the region as a whole.
The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Rhondda Westminster constituency. It is entirely within the preserved county of Mid Glamorgan.
The other seven constituencies of the region are Cardiff Central, Cardiff North, Cardiff South and Penarth, Cardiff West, Cynon Valley, Pontypridd and Vale of Glamorgan.