Isabelle Santiago (born 20 September 1965) is a French politician of the Socialist Party (PS) who has been serving as the deputy for Val-de-Marne's 9th constituency in the National Assembly of France since 27 September 2020.
Until her election to the National Assembly, she was 5th vice-president of Val-de-Marne in charge of the protection of children and adolescents.
[2] A by-election was held for Val-de-Marne's 9th constituency in September 2020 because the deputy, Luc Carvounas was ineligible due to cumulation of mandates when he was re-elected Mayor of Alfortville, and his substitute, Sarah Taillebois, was ineligible due to appointment to the École nationale d'administration.
In addition to her committee assignments, she was part of the French Parliamentary Friendship Groups with Japan, Algeria and Armenia.
[6] In 2023, Santiago publicly endorsed the re-election of the Socialist Party's chairman Olivier Faure.