M.J.A. "Thijs" Reuten (Dutch pronunciation: [tɛis ˈrøːtə(n)]; born 1974) is a Dutch politician of the Labour Party (PvdA). He began his career as a policy advisor of the party's parliamentary group in the House of Representatives and was a member of the Amsterdam municipal council in the years 2002–07. He then served for two terms as a district alderman in Amsterdam-Oost with a focus on housing and the economy. Starting in 2018, Reuten worked as an independent consultant and as head of policy at the Global Reporting Initiative (GRI). He was appointed to the European Parliament in April 2021 after the resignation of Kati Piri.