People of the Senedd

Sioned Williams MS

Sioned Williams MS

Senedd Regional Member

Plaid Cymru

Plaid Cymru Group

South Wales West

My Senedd Activities

—to plan carefully to ensure a just transition, because without that, there is a very significant risk that we will not achieve a low carbon, environmentally sustainable economy, which is...

Plenary | 20/09/2023

from Luke Fletcher. Indeed, it is absolutely essential that we don’t repeat the mistakes of the past, and that the unfairness of the past is not repeated, and that the green future is one...

Plenary | 20/09/2023

Last week's news about Tata should have sounded a clear alarm about the importance of ensuring that the journey to decarbonisation is one that is inclusive, fair and just. Just transition...

Plenary | 20/09/2023

This September is Gynaecological Cancer Awareness Month. Throughout the month, various organisations work to raise awareness of the five gynaecological cancers—womb, ovarian, cervical, vu...

Plenary | 20/09/2023

The day after we discuss a long-overdue proposal to ensure the Senedd is more representative of Welsh society, we learn that this prominent gender equality charity, Chwarae Teg, is shutti...

Plenary | 20/09/2023

The most depressing aspect of politics, in my opinion, is when vulnerable people are used as political footballs. Their lives, interests and well-being are not seen in a human context but...

Plenary | 19/09/2023

More information and calendar events

Detailed information: Sioned Williams MS


Personal history

Sioned Williams grew up in the Gwent valleys and was educated at Ysgol Gymraeg Cwmbrân and Ysgol Gyfun Cwm Rhymni. She lives in Alltwen, in the Swansea Valley with her husband Daniel and their two teenage children. Sioned is fluent in Welsh. After graduating in Welsh and English from Aberystwyth University, she was awarded the S4C T.Glynne Davies Scholarship to study for a postgraduate diploma in Journalism at Cardiff University.

Professional background

Sioned was a journalist with BBC Wales before going to work for Swansea University as Welsh Language Policy Officer and then as Communications and Development Manager at Academi Hywel Teifi. As part of her work at the University, she helped establish and co-managed Tŷ’r Gwrhyd, the Swansea Valley’s Welsh language centre. She has also worked for Plaid Cymru as Head of Strategic Communications. Sioned is a well-known reviewer and commentator on broadcasting and the arts for Welsh broadcast and print media and has adjudicated the Daniel Owen Memorial Prize at the National Eisteddfod and the Crown competition at the Urdd National Eisteddfod. She is a former Board member and Chair of the Bursaries Panel at Literature Wales.

Political history

Sioned was Community Councillor for Alltwen and Chair of Cilybebyll Community Council  before being elected as Member of the Senedd for South Wales West in the 2021 Election.


Terms of office

  1. 08/05/2021 -

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Cross Party Membership


Media Assets

Calendar events: Sioned Williams MS