Siôn Llewelyn Simon (born 23 December 1968) is a British Labour Party politician who was a Member of the European Parliament (MEP) for the West Midlands from 2014 to 2019.
He previously served as the Member of Parliament (MP) for Birmingham Erdington from 2001 to 2010.
Simon was the Parliamentary Under-Secretary of State for Further Education from 2008 to 2009 and Parliamentary Under-Secretary of State for Creative Industries from 2009 to 2010.
He stood down at the 2010 general election to campaign for a directly elected Mayor of Birmingham, with the intent of running in the first election.
In 2014 Simon was elected a Member of the European Parliament for the West Midlands.
In 2016 he was selected as Labour's candidate for West Midlands Mayor but was defeated in the 2017 election by 50.4% to 49.6% of the vote in the final round.
In 2019, he lost his seat in the European Elections.