After studying acting and cello, Maëlle Dequiedt graduated from the school of the Théâtre National de Strasbourg in 2016, specializing in staging. There, she creates Penthésilée by Heinrich von Kleist and Au Bois by Claudine Galea. She is assistant to Thom Luz for Der Zauberberg (Theater Basel) and Séverine Chavrier for Nous sommes repus mais pas repentis (Théâtre Vidy Lausanne – Odéon).
In 2016-2017, she was invited as a stage director at the Académie de l’Opéra national de Paris, for which she created Shakespeare – Fragments nocturnes.
In september 2017, she founded her own company La Phenomena which is now supported by the Cluster plan (TCI). She was then supported by the production company Prémisses and became artist associate of the Théâtre de la Cité internationale for three seasons, until autumn 2021. She created Trust-karaoké panoramique inspired by Falk Richter and created Pupilla by Frédéric Vossier in 2020 and I Wish I Was, a collective and musical production in October 2021.
Since 2019, she has been supported by the Campus Européen de Valenciennes – Amiens and has a long-term residency in the Nord-Pas de Calais Mining Basin. In March 2020, she created Les Noces, variations, at the Opéra de Lille, based on The Marriage of Figaro by Mozart. Thanks to the Création en Cours programme (French ministry of culture / Ateliers Médicis), she is leading Jukebox, a project that offers artistic residency and initiative in the village of Fours in the Nièvre department. She occasionally takes part in teaching workshops for high-schoolers of the CDN of Orléans, for the Educational and Proximity programme of the TNS, for choirmasters of the Opéra de Lille and for singers of the studio of the Opéra national du Rhin.
In March 2021, she staged Trigger Warning by Marco Caramès Blanco, invited by the ENSATT. For the Lycéens Citoyens initiative, launched by La Colline – Théâtre National, she created the play Gorgée d’Eau, by Penda Diouf, in December 2021. She is preparing a stage version of Stabat Mater by Domenico Scarlatti including singers and actors with Simon-Pierre Bestion and the Ensemble la Tempête.