- Moulas Georgios, Soloist, Bass
- Moumoulidis Themis, Writer, Director
- Mouriki Aleka, Writer, Translator
- Mousdrakis Nakis, Soloist, Tenor
- Moustaka Athanasia, Soloist, Soprano
- Moutousi Amalia, Actress
- Moutsios Georgios, Actor, Soloist, Baritone
- Moutsiou Maria, Soloist, Soprano
- Moutsiou Sophia, GNO Chorus Member, Mezzo-Soprano
- Mouzenidis Takis (Theodoros), Director
- Mozart Wolfgang-Amadeus, Composer
- Mpastias(Mpastunopulos) Kosths (Aimilios, Konstantinos), Writer and journalist
- Mudryak Maria, Soloist, Soprano
- Mukhamedov Irek, Dancer, Choreographer
- Mumford Peter, Lighting designer
- Muñoz Daniel, Soloist, Tenor
- Muratbekova Irina, Soloist, Soprano
- Murauer Herbert, Set and Costume Designer
- Murray John Horton, Soloist, Tenor
- Mussorgsky Modest, Composer, Librettist
- Muzyca Nadia, Dancer
- Mykytenko Οlga, Soloist, Soprano
- Mylona M.
- Myrotheou N., Soloist, Soprano
- Nadler Sheila, Soloist, Mezzo-Soprano
- Nafé Alicia, Soloist, Soprano
- Naki Vasiliki, Soloist, Soprano
- Nakis A., Soloist, Tenor
- Nalbandis Dimitris, Soloist, Tenor
- Naneris Nikiforos, Actor
- Nanouris Yorgos, Director
- Nara B., Soloist
- Nastou Ermioni, Chorus conductor
- Nathena Eva, Set Designer, Costume Designer
- Nedomansky Leo, Director
- Negrin Francisco, Director
- Neill Stuart, Soloist, Tenor
- Nemet Rudolf, Soloist, Bass
- Nerantzis Angelos-Prokopios, Actor
- Nesi Mary-Ellen, Soloist, Mezzo-Soprano
- Neskov Aleksandar (Sasa), Dancer
- Nezeriti Rena, Libretto translator into Greek
- Nezeritis Andreas, Composer
- Nichols Clark, Choreographer
- Nicola Raab, Director
- Nicolescu Antonius, Soloist, Tenor
- Niefind Dagmar, Costume designer
- Nikaki Maro, Soloist, Soprano
- Nikita Francesca, Soloist, Soprano
- Nikolaeva Radostina, Soloist, Soprano
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