Inna Tkachenko was born in Kharkov (Ukraine). In 2010 she graduated from the Kharkov Choreographic College of Culture.
In 2010-2013 — studied at the Grigory Skovoroda Kharkov National Pedagogical University. In 2008–2010 underwent internship training at the Nikolai Lysenko Kharkov National Opera and Ballet Theatre.
In 2010–2011 — worked as an artist of the Kharkov Academic Theatre of Musical Comedy. Participated in tours and collaborated with the following ballet companies: The Crown of Russian Ballet (2012), The Classical Russian Ballet (2012), Taras Shevchenko National Opera and Ballet Theatre of Ukraine (2013), The Royal Russian Ballet (2013), the Imperial Russian Ballet (2013-2014).
In June 2015 — became an artist of the Ballet Company of the Primorsky Opera and Ballet Theatre. Since 2016 she has been a member of the Ballet Company of the Primorsky Stage of the Mariinsky Theatre.
Repertoire at the Primorsky Stage of the Mariinsky Theatre includes:
Swan Lake (The Princess Regent, Swans); choreography by Marius Petipa and Lev Ivanov, revised choreography by Konstantin Sergeyev and choreographic adaptation by Eldar Aliev,
The Sleeping Beauty (Queen, Suite Lilac Fairy, Court Ladies, the Nereids, Waltz, Mazurka); choreography by Marius Petipa revised version by Konstantin Sergeev and Eldar Aliev,
The Nutcracker (Grandmother, Parents, Snowflakes, Queen, Waltz of Flowers); choreography by Eldar Aliev,
Giselle (Berthe, Bathilde, Waltz, Peasant Dance, the Wilis); choreography by Jean Coralli, Jules Perrot and Marius Petipa,
The Firebird (Girls, Kashchei’s Kingdom); choreography by Eldar Aliev,
In the Jungle (People); choreography by Anton Pimonov.
George Balanchine’ ballets: The Prodigal Son (Sisters), Serenade (Women).
Repertoire also includes corps de ballet parts: Cinderella, Don Quixote, Paquita, Coppelia, Walpurgisnacht, The Polovtsian Dances from opera Prince Igor.