Ania Guédroïtz, née Princess Agnes Alexeievna Guedroitz on 15 January 1949 in Dublin, Ireland, is a Belgian actress.
Ania Guédroïtz was born in Dublin, daughter of Prince Alexis Nicolaevich Guedroitz and Oonagh Ryan (Kathleen Ryan's sister).
She lived her childhood in Belgium with her father who was remarried. Educated in Brussels, she began studying drama at the Royal Conservatory, where she obtained a first prize "with great distinction" in 1972. In addition to French, her main language, she also studied Russian and English.
She then began a professional career in various theatres in Brussels. In 1973, she married the Belgian theater actor and had a son, Michaël Frison, born in 1974. The couple divorced in 1977.
She was made a Knight of the Order of Leopold II in 1992.