Olga Gaiko graduated from the Belarusian State Choreographic College. She joined the ballet company of the National Academic Bolshoi Opera and Ballet Theatre of the Republic of Belarus in 1997.

Siren La Villi. Fatum
Kitri Don Quixote
Odette/ Odile Swan Lake
Aurora, the Lilac Fairy The Sleeping Beauty
The title role Giselle
The title role La Esmeralda
Medora Le Corsaire
Nele The Legend of Eulenspiegel
Rogneda Passions
Carmen Carmen Suite
The title role The Firebird
The Chosen Maiden The Rite of Spring
The Beloved, the Harlot Carmina Burana
Lise La Fille mal gardée
Lady Macbeth Macbeth
Phrygia Spartacus
Nikiya La Bayadère
Masha The Nutcracker
Juliet Romeo and Juliet
Abbie Desire Under the Elms
Zarema The Fountain of Bakhchisarai
Isolde Tristan and Isolde
The Fairy Cinderella
The Sylph La Sylphide
The title role Thamar
Zobeide Scheherazade
The title role Paquita
The Stepmother Snow White and the Seven Dwarfs
Dark Angel Serenade
Jadwiga Vitaut
Aysha Seven Beauties
Taglioni Pas de Quatre
The title role Laurencia
The Beloved Le Petit Prince