Sabine Thillaye (born 18 May 1959) is a French-German entrepreneur and politician who has been serving as a member of the French National Assembly since 18 June 2017, representing the 5th constituency of the departement of Indre-et-Loire.

In June 2016, Thillaye decided to run as a candidate for the En Marche!-movement for the legislative elections of 2017, imposing herself in the second tour against Fabrice Boigard of Les Républicains (LR).

Together with Richard Ferrand, parliamentary leader of La République en Marche!, Thillaye introduced a resolution aiming at the promotion of the symbols of the European Union[6] which was accepted on 27 November 2017.

[9] Together with Andreas Jung, member of the German Bundestag, and her colleague from the National assembly, Christophe Arend, Thillaye served as co-chairwoman of the Franco-German parliamentary working group, which had been founded on 22 January 2018 on the occasion of the 55th anniversary of the signing of the Elyséé-treaty in 1963.

[11] In a joint letter initiated by Norbert Röttgen and Anthony Gonzalez ahead of the 47th G7 summit in 2021, Thillaye joined some 70 legislators from Europe, the US and Japan in calling upon their leaders to take a tough stance on China and to "avoid becoming dependent" on the country for technology including artificial intelligence and 5G.