Ukrainian mezzo-soprano Anastasiya Martyniuk was born in Moldova and gained her musical education in Zaporozhye Musical College and Chisinau Academy of Music, Theater and Fine Arts. In 2005-2007 she was a fellow of the Central & Eastern European Musiktheater in Vienna Opera, Austria.

Since 2006 until 2018 she was staff member of the National Opera of Moldova. While working in Moldova, she actively collaborated with the National Philharmonic and the Organ Hall.  He is a diploma recipient the international competition Maria Biesu (Chisinau, 2012), semifinalsist Belvedere 2012, and diploma recipient of the Minsk International Christmas Competition (Minsk, 2017).

Since 2018, she was a soloist of the Odessa National Opera and Ballet Theatre, where she performed the leading parts of the mezzo-soprano repertoire, such as Amneris, Carmen, Fenena, etc. Also she began collaborating with the National Theater Brno, where in seasons 2021/22 and 2022/23 she performed the role of Fenena in Nabucco (director- Jiří Heřman, conductor- Pavel Šnajdr), as well as the title role in the opera Carmen by Bizet (director- Tomáš Pilař,  conductor- Ondrej Olos).

She also began collaborating with the Olomouc Opera House, where in the season 2022/23 she took part in the opera Nabucco as Fenena (director- Jana Andělová – Pletichová, conductor- Petr Šumnik).

In the season of 2025/26, she returns to the National Theatre Brno to take part in the production of Aida in the role of Amneris.