Mats Thiersch is a German conductor. Since October 2024, he has served as Music Director of the Orchestre et Chœur Symphonique du COGE (Chœurs et Orchestres des Grandes Écoles) in Paris and was invited that same year to the prestigious Gstaad Conducting Academy under Johannes Schlaefli and Jaap van Zweden. He is one of six semi-finalists in the upcoming 80th Concours de Genève Conducting Competition 2026.​

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Mats began his musical education at the age of six with the violin, later adding piano and composition. In 2021, he began studying composition with Miroslav Srnka at the Hochschule für Musik und Tanz Köln. His works have been performed by ensembles such as Ensemble Musikfabrik and have received multiple awards, including the Composition Prize of the German Orchestra Foundation and an invitation to the IMPULS Festival Campus for Contemporary Music.

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Since 2023, he has been studying orchestral conducting at the Paris Conservatoire with Alain Altinoglu. Masterclasses have brought him together with conductors such as Mikko Franck, Alexandre Bloch, and Pierre-André Valade. He has conducted the Orchestre des Lauréats du Conservatoire, the Orchestre National de Lille, the Ensemble Intercontemporain, the Orchestre Philharmonique Royal de Liège, and the Gstaad Festival Orchestra. He also gained valuable experience as assistant to Joseph Bastian (Orchestre National d’Île-de-France) and Benjamin Levy (Orchestre National de Cannes).

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Since 2025, Mats Thiersch has been a scholar of the Forum Dirigieren of the German Music Council (Deutscher Musikrat).