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Simon Thomas

b. 1963

British politician (born 1963)

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About Simon Thomas

Born 1963. Simon Thomas is a British politician and librarian.

Simon George Thomas (born 28 December 1963) is a Welsh former politician who was a member of Plaid Cymru. He was a Member of Parliament (MP) for Ceredigion from 2000 to 2005, and an Assembly Member in the National Assembly for Wales representing the Mid and West Wales list between 2011 and 2018.

Thomas resigned as an Assembly Member and his party membership on 25 July 2018, following arrest by police on suspicion of possession of indecent images. On 31 October 2018 he was given a 26-week jail sentence, suspended for two years.

Early life He went to Aberdare Boys' Grammar School (became Aberdare Boys' Comprehensive School in 1978). At the University of College Wales, Aberystwyth, he gained a BA in Welsh and Education in 1985. He gained a Postgraduate diploma (DipLib) from the College of Librarianship Wales (CLW) in Llanbadarn Fawr, Aberystwyth in 1988 (College became part of the university in 1989). From 1994 to 2000, he was Rural Development Manager for the JIGSO rural development agency.

Thomas is the father of two children.

Political career Thomas was elected as a Councillor in Ceredigion County Council for Aberystwyth East in 1999 and resigned after being elected a Member of Parliament. He was fifth on Plaid Cymru's regional list for Mid and West Wales in the inaugural National Assembly for Wales election in 1999; only list leader Cynog Dafis was elected. On entering the House of Commons, he took the oath of allegiance in the Welsh language, and was heckled by some English MPs. He retained the seat for Plaid Cymru at the 2001 election with a reduced majority, and lost it in the 2005 general election to Mark Williams of the Liberal Democrats. During the 2005 general election he wrote a blog on the Channel 4 News website which shows a near daily account of his campaign trail and his thoughts following his defeat. Thomas said he had not expected his defeat. According to a BBC news report he said "I was getting a very positive response on the doorstep". In the aftermath of his defeat, he called for Plaid Cymru to reform its leadership arrangements and have a single leader "round which the party coalesces and around which the people of Wales can identify".

Ahead of the 2007 election he sought a place on Plaid Cymru's South Wales Central list. After being placed 4th by his party and facing no realistic chance of being elected he withdrew and did not stand. Following the 2007 Welsh Assembly election, he was appointed a special adviser to the Plaid Cymru ministers in the Welsh Assembly Government coalition between his party and Labour.

In September 2010, Simon Thomas was placed at the top of Plaid Cymru's regional list for Mid and West Wales in the 2011 Welsh Assembly election with the incumbent Nerys Evans instead running for the constituency seat of Carmarthen West and South Pembrokeshire. He was elected to the National Assembly for Wales.

When a party leadership election was triggered by the resignation of Ieuan Wyn Jones, Thomas announced his candidacy on 1 December 2011. The following 6 February, he withdrew in favour of Elin Jones, running to become her deputy leader. The election was won by Leanne Wood.

Ahead of the 2016 Assembly Election, unsuccessfully sought the Plaid Cymru nomination for Llanelli, but lost out to Helen Mary Jones, he went on to stand in the constituency of Carmarthen West and South Pembrokeshire, coming third as Angela Burns retained it for the Conservatives, he was however returned on the Mid and West Wales List.

Following the 2016 election he was elected unopposed as chair of the Assembly's Finance Committee, a position he held until July 2018.

United Kingdom parliamentary expenses scandal

As part of the investigation into United Kingdom parliamentary expenses scandal, Thomas was found to have over claimed Β£349.20 in mortgage interest between 2004 and 2005 under the additional costs allowance (ACA). He was recommended to repay this sum, by 1 April 2009 no money was repaid.

Arrest and resignation

On 25 July 2018 he resigned as an AM and from Plaid Cymru following his arrest by police on suspicion of possession of indecent images. His seat was taken by Helen Mary Jones, who was next in line on Plaid's regional list.

On 18 September he was charged by Dyfed-Powys Police with three counts of making indecent images of children. In the context of digital media, saving an indecent image to a computer's hard drive is considered to be "making" the image, as it causes a copy to exist which did not exist before.

He pleaded guilty to three counts of making indecent images at Aberystwyth Magistrates' Court on 3 October 2018, having made over 600 such images and videos. 2011 Welsh Assembly election Mid and West Wales

Plaid Cymru 56,384 26.7 Elected 2016 Welsh Assembly election Mid and West Wales

Plaid Cymru 56,754 26.3 Elected

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Important facts

Birth century
Education
Aberystwyth University, Aberdare High School
Positions held
Member of the 53rd Parliament of the United Kingdom, Member of the 52nd Parliament of the United Kingdom, Member of the 4th National Assembly for Wales, Member of the 5th National Assembly for Wales
Also known as
Simon George Thomas

People in Simon Thomas's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Simon Thomas's

Frequently asked questions

Who is Simon Thomas?

British politician (born 1963)

When was Simon Thomas born?

Simon Thomas was born on 28 December 1963.

What is Simon Thomas's occupation?

Simon Thomas is a politician and librarian.

What nationality is Simon Thomas?

Simon Thomas is British.

Sources & further reading

Β· Wikipedia: Simon Thomas

Β· Wikidata: Q3405148

Β· DBpedia: Simon Thomas (politician)

Cite this page

APA: Biography.guide. (2026). Simon Thomas. https://biography.guide/simon-thomas-politician/

MLA: "Simon Thomas." Biography.guide, https://biography.guide/simon-thomas-politician/.

Chicago: "Simon Thomas." Biography.guide. https://biography.guide/simon-thomas-politician/.

Data last updated: 2026-09-20 Β· Spot an error? Report a correction.

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