At the age of four, Cristiana Ioniță began dance classes and then, at the age of seven, canto lessons. Throughout her childhood she took part in numerous festivals, competitions, and both national and international tours. After taking part in Three for a Mask, a theatre competition for children, she decided to sit the admissions examination for the Art of the Actor section of the Dinu Lipatti Lycée. She has been head over heels in love with the theatre ever since. After finishing lycée, she studied in the acting class of professors Doru Ana and Valeria Sitaru at the Ion Caragiale National Theatre of Theatrical and Cinematic Art in Bucharest and went on to take an M.A. with professors Gelu Colceag and Tania Filip.
She has worked with a number of famous theatres in Bucharest, including the National Theatre, Bulandra Theatre, Nottara Theatre, Very Small Theatre, and Excelsior, and with major directors Alexandru Darie, Dan Puric, Mihai Maniuțiu, Gelu Colceag, Mick Davis, Antoaneta Cojocaru, and Attila Visauer. She has taken part in countless festivals and competitions, both in Romania and internationally, and her awards include Best Actress at the 10-Minute Play Competition.
She has performed in feature films, television advertisements, and online productions. She has been a member of the Dan Puric Passepartout Theatre Company and has taken part in the Hamlet and Us project, a manifesto for art and culture organised by the Art Laboratory, which aims to foster awareness of the creative potential that exists in today’s society.