Rhodri Mabon ap Gwynfor is a Welsh Plaid Cymru politician who has been Member of the Senedd (MS) for Dwyfor Meirionnydd since 2021.

[1] He has served as Plaid Cymru's Health, Social Care and Housing Spokesperson and Chief Whip since June 2023.

He attempted to be selected as Plaid Cymru candidate for Ceredigion in 2010, but was not successful.

He said it was impossible to "effectively" fulfil roles as a councillor and Senedd Member.

He is a member of cross-party groups on hospice and palliative care, human rights, long COVID, poverty, renewable and low carbon energy, rural growth, stroke and Welsh wool.