Koyna Ruseva was born on May 2, 1970 in Stara Zagora in the family of prominent artists, writers, musicians and creative people.
She graduated in acting in 1993 from the National Theatre and Film Academy ins Sofia.
She is an actor at the Youth Theater where she participated in plays such as "Tartufe", "In the Ice", "Condemned Souls" and others. She has also performed in the theatre "Tear and Laughter" in "The Seagull" and "Platonov", in the Theater "Sofia" in "Life - these are two women", Theater 199 in the plays "The Other Person", "The Innocents” and “Three Rainy Days”. She is a regular on the entertainment show "Alaminute", broadcast on bTV.