Canlyniadau etholiadau ar gyfer Penyrheol

 Llafur Ennill David Cole was wedi'i ethol with a majority of 5%. Cafodd cyfanswm o 2734 o bleidleisiau eu bwrw, representing a turnout of 34% .

Table of main parties and ymgeisydd etholiad retaining deposit

Ymgeisydd Etholiad	Plaid	Nifer	%	Statws	% Newid
David Cole	Llafur	1036	38%	Newly elected	n/a
Jan Curtice	Llafur	904	33%	Newly elected	n/a
Jim Dunckley	Plaid Cymru	346	13%	Heb ei ethol	n/a
Hannah Lowe	Plaid Cymru	248	9%	Heb ei ethol	n/a
Victor Bruno	Annibynnol	200	7%	Heb ei ethol	n/a