Born and raised in Lausanne by a French father and a Bolivian mother, Marc Leroy-Calatayud held the position of Associate Conductor for L’Orchestre de Chambre de Genève for the 2022-23 season. This included a critically acclaimed semi-staged production of Gounod’s Romeo et Juliette with Benjamin Bernheim. He previously held the position of Artist-in-Residence of Orchestre National de Cannes for the 2021-22 season. Marc Leroy-Calatayud was Assistant Conductor at the Opéra National de Bordeaux from 2016 to 2019 where he regularly conducted opera and ballet performances, as well as symphonic concerts. He is a conducting fellow of the Akademie Musiktheater Heute (2018-2021) and studied conducting in Vienna and Zürich with Mark Stringer and Johannes Schlaefli.

2023-24 symphonic highlights include debuts with Orchestre National d’Ile de France, Orchestra di Padova e del Veneto, National Youth Orchestra of Ireland, Orchestre Philharmonique de Nice, Opéra de Massy, Opéra de Saint-Etienne, Orchestre de chambre de Fribourg as well as returns to Orchestre de Chambre de Lausanne and Orchestre de Chambre de Genève and Orchestre de l'Opéra National de Lorraine. He has also recently worked with orchestras including Real Filharmonia de Galicia, Tokyo Symphony Orchestra, an extensive Japanese tour with Kanazawa Orchestra Ensemble, Orchestre de la Suisse Romande, Orchestre National du Capitole de Toulouse, Musikkollegium Winterthur, Orchestre National Bordeaux-Aquitaine, Orchestra della Toscana & Ensemble Modern Frankfurt.

A passionate opera conductor, Marc Leroy-Calatayud enjoys a wide operatic repertoire from Händel and Mozart to Ravel, Weill and Rihm. Operatic highlights of this season include his debut at Lausanne Opera with Cendrillon and a return to Opéra de Rouen to conduct Reynaldo Hahn’s O mon bel inconnu. He will also bring Kurt Weill’s Die Sieben Todsünden der Kleinbürger to Théâtre des Champs-Elysées with Orchestre de Chambre de Genève. Recent opera highlights include productions of Donizetti's Un Elixir d'amour at Théâtre des Champs-Elysées, Arthur Lavandier's La Légende du Roi Dragon, Rossini’s Il Barbiere di Siviglia and Henri Rabaud’s Marouf, Savetier du Caire with Opéra National de Bordeaux, Don Giovanni at Festival de Sanxay, Il Barbiere di Siviglia at Festival de Sanxay, Die Sieben Todsünden with Ensemble Nomade, and the world premiere of Baticci's Icaro with Ensemble Modern in November 2021. Marc Leroy-Calatayud has also assisted a number of productions including Les Troyens at Bayerische Staatsoper (Daniele Rustioni), Platée and Oedipe at Opéra National de Paris (Marc Minkowski / Ingo Metzmacher), Jakob Lenz at Festival d’Aix-en-Provence (Ingo Metzmacher), and Alcina at Wiener Staatsoper.

Marc Leroy-Calatayud also has a real flare for ballet productions. In February 2023 Marc conducted the National Ballet of Japan in Roland Petit's production of Coppelia (Delibes). He has also recently conducted Prokofiev’s Cendrillon, choreographed by Sir David Bintley, and La Fille mal Gardée at the Opéra National de Bordeaux. Marc made his ballet conducting debut in June 2018 with a Kylían-Béjart-Robbins production, and just one year later made his debut with Opéra de Lyon in September 2019 for their production of Spiral Pass, a double-bill choreographed by Russel Maliphant.

Marc Leroy-Calatayud is a strong advocate for musical education and outreach projects. In 2009, he founded a youth symphony orchestra, l’Orchestre Quipasseparlà, with the aim of finding new ways to make music accessible to everyone. This included concerts in hospitals, retirement homes and homeless shelters. Marc Leroy-Calatayud also has a YouTube channel dedicated to bringing some of the greatest operatic masterpieces to wider audiences.