Penyrheol is the name of an electoral ward and a suburb in the City and County of Swansea, Wales, UK.

The electoral ward consists of some or all of the following areas: Penyrheol, Grovesend and Waun Gron, in the parliamentary constituency of Gower. It is bordered by the Loughor estuary to the north west; and the wards of Pontarddulais to the north; Llangyfelach to the east; and Upper Loughor, Kingsbridge, Gorseinon and Penllergaer to the south.

For the 2008 local council elections, the turnout was 34.16%. The results were:

Candidate	Party	Votes	Status
David Cole	Labour	1036	Labour hold
Jan Curtice	Labour	904	Labour gain
Jim Dunckley	Plaid Cymru	346
Hannah Lowe	Plaid Cymru	248
Victor Bruno	Independent	200

In 2012 the result was as follows:

Penyrheol 2012

Party		Candidate	Votes	%	±%
	Labour	David William Cole	1,036
	Labour	Jan Curtice	904
	Plaid Cymru	Jim Dunckley	346
	Plaid Cymru	Hannah Lowe	248
	Independent	Victor Bruno	200
	Labour hold		Swing
	Labour gain from Independent		Swing
Turnout				34.2

51°40′51″N 4°03′19″W / 51.68076°N 4.05531°W / 51.68076; -4.05531