Maria Renske "Marietje" Schaake (Dutch pronunciation: [maːˈritɕə ˈsxaːkə]; born 28 October 1978) is a Dutch politician who served as Member of the European Parliament (MEP) from the Netherlands between 2009 and 2019. She is a member of Democrats 66, part of the Alliance of Liberals and Democrats for Europe Party.

Schaake has been named international director of policy at Stanford's Cyber Policy Center, as well as an International Policy Fellow at the University’s Institute for Human-Centered Artificial Intelligence.

The Wall Street Journal called her "Europe's most wired politician", while CNN called her a "rising Dutch star" who makes an increasingly rare "passionate and public case for liberalism and globalization". She was selected as one of the "Politico 28" in 2017. During her last months in office in 2019, Politico also called her one of the 40 MEP's who mattered in 2014–2019. According to Politico, Schaake is the "ultimate digital MEP" whose name has been floated as a potential candidate for the foreign ministry". The magazine also called her a "lead MEP on cybersecurity". In 2017 she was invited as a 'civic leader' to address the Obama Foundation summit. She publishes op-eds in the Financial Times, The Guardian and Bloomberg. She writes a column for the Financial Times and the Dutch NRC newspaper’s economic section twice a month.

Schaake was raised in Leiden and attended the Haags Montessori Lyceum (high school) in The Hague. She then left for the United States to study liberal arts at Wittenberg University in Ohio. She then studied sociology, American studies and new media at the University of Amsterdam. After an internship with the International Criminal Tribunal for the former Yugoslavia, Schaake was granted the Lantos Fellowship of the United States House of Representatives, where she focused on international relations and human rights issues.

Before her political career, Schaake served as an independent advisor to, amongst others, the United States Ambassador to the Netherlands and to the president of the Leadership Conference on Civil Rights in Washington, D.C. Other assignments included consulting the Dutch Ministry of Foreign Affairs, as well as cultural institutes and companies. Schaake specialized in issues such as transatlantic relations, diversity, integration, civil rights and Muslims in the West. In 2007 she received the Barney Karbank Memorial Award 2007 for outstanding leadership on the issue of human rights.

In the autumn of 2008, Schaake was nominated as candidate for the European Parliament for the Dutch political party Democrats 66 (D66). In the European Parliament elections of 2009, Schaake was elected at age 30 when D66 won three seats. In the 2014 elections, she was re-elected for a second term.

In the European Parliament, Schaake was the ALDE Coordinator of the International Trade committee (INTA). She was also the spokesperson for the ALDE Group on the Canada-EU Trade Agreement Transatlantic Trade and Investment Partnership (TTIP). In 2016, she served as the parliament's rapporteur on a ban on trade in certain goods which could be used for capital punishment, torture or other treatment or punishment. She then pushed for stricter export controls for cybersurveillance technologies through her work on the dual-use legislation. Schaake also advanced stronger oversight over the trade in cultural goods from conflict areas.

Schaake additionally served on the committee on Foreign Affairs (AFET), where she focused on strengthening Europe as a global player. She worked on the EU's neighbourhood policy, notably Turkey, Iran and North Africa and the broader Middle East. In the subcommittee on Human Rights (DROI), she spoke on human rights and coordinated the monthly human rights resolutions for ALDE.