Jonathan Neil Reynolds (born 28 August 1980) is a British politician who has served as Chief Whip of the House of Commons and Parliamentary Secretary to the Treasury since September 2025. He previously served as Secretary of State for Business and Trade and President of the Board of Trade from 2024 to 2025. A member of the Labour and Co-operative parties, he has been the Member of Parliament (MP) for Stalybridge and Hyde since 2010.

Reynolds served as Parliamentary Private Secretary to the Leader of the Opposition and a Shadow Energy and Climate Change Minister from 2013 to 2015. He was a Shadow Transport Minister from 2015 to 2016 and a Shadow Treasury Minister from 2016 until 2020. He was Shadow Secretary of State for Work and Pensions from 2020 to 2021, and has been a front bench representative on the Labour National Executive Committee since 2020.

Jonathan Reynolds was born on 28 August 1980 in Houghton-le-Spring in County Durham to Keith and Judith Reynolds. He was educated at Houghton Kepier Comprehensive School and Sunderland City College. He moved to Manchester in 1998, studying politics and modern history at the University of Manchester, and then studying at BPP Law School. After leaving university Reynolds worked as a trainee solicitor in the Manchester branch of the law firm Addleshaw Goddard, though never completed his solicitor training.

Before becoming an MP, Reynolds served on Labour’s National Executive Committee from 2003 to 2005. In 2007, he was elected to Tameside Council as the councillor for the Longdendale ward.

Reynolds worked for four years as a political assistant for the Stalybridge and Hyde MP James Purnell and was selected to replace Purnell after a controversial selection process. Reynolds is a member of the Co-operative Party and Unite the Union.

At the 2010 general election, Reynolds was elected as MP for Stalybridge and Hyde with 39.6% of the vote and a majority of 2,744. In 2011 Reynolds stood down as a councillor. Once elected as an MP he did not claim Councillor Allowances. In July 2013, Reynolds publicly called for the resignation of Tameside Hospital's Chief Executive, Christine Green.

During his campaign, Reynolds focused on local issues such as the redevelopment of town centres, particularly Stalybridge, the Mottram-Tintwistle Bypass, the need for more primary school places in Hyde, and improved rail links in his constituency. His commitment to addressing these local concerns resonated with voters and helped him secure the seat. He also supported improvements Northern Hub rail and also opposed policing cuts in his constituency.

Under Ed Miliband, Reynolds was appointed Shadow Justice and Constitutional Affairs Whip. He was later appointed Miliband's Parliamentary Private Secretary and Shadow Minister for Energy and Climate Change. As Shadow Energy Minister, he focused on fuel poverty, energy efficiency, and solar energy. At the 2015 general election, Reynolds was re-elected as MP for Stalybridge and Hyde with an increased vote share of 45% and an increased majority of 6,686.