Alina Tkachuk was born in the city of Mykolayiv, Ukraine.

She completed her Master’s and Doctorate degrees in vocal performance at the Odessa National Music Academy.

From 2018 to 2024, Alina was a member of the ensemble of the Odessa National Opera and Ballet Theater, where she performed roles such as Gilda, Rosina, Leïla (The Pearl Fishers), Adina, Euridice (Orfeo ed Euridice), Donna Elvira, Nedda, Serpina (La serva padrona by Pergolesi), Micaela, Liù, Musetta, Oksana (Zaporozhets za Dunayem by S. Hulak-Artemovsky), and Annina (La traviata).

In 2024, she toured with the Moldovan National Opera Maria Bieșu in the Netherlands, performing the role of Rosina.

In the summer of 2024, she made her debut at Opera på Skäret in Sweden in the role of Norma. In October 2024, she appeared as Gilda at the Vincenzo Bellini Theater in Catania, Italy.

In 2023, she debuted at the Tbilisi Opera and Ballet Theater as Gilda. During the 2023/24 season, she performed as Musetta at the Staatstheater Cottbus, and in June 2022, she sang Micaela at the Festspiele im Schlossgarten Neustrelitz.

Her previous performances also include tours in China with the National Symphony Orchestra of Ukraine (conducted by Niccolò Giuliani), as well as in Belgium and the Netherlands with the Odessa National Opera and Ballet Theater ensemble, where she performed Carmina Burana by Carl Orff in 2021.

Alina has participated in several international singing competitions and reached the semifinals and finals in prestigious events such as the International Hans Gabor Belvedere Singing Competition, the 2nd CLIP Singing Competition in Portofino (Italy), the 13th Riccardo Zandonai International Singing Competition in Riva del Garda (Italy), the International Otto Edelmann Opera Competition in Vienna (Austria), and the First International Opera Singers’ Competition at the Tbilisi Opera Theatre Opera Crown.

She has also actively participated in masterclasses with Luciana D'Intino and Beatrice Benzi.