Mary Thivaiou was born in Athens. She studied Art Conservation at the Department of Antiquities and Works of Art Conservation of the Technological Educational Institute of Athens and Visual Arts at Athens School of Fine Arts. She received an Erasmus scholarship for a six-month attendance at the department of Arts Plastiques at Université Paris 8. Also, she graduated from the Master of Fine Arts (MFA) of Athens School of Fine Arts. She has participated in group exhibitions in Greece and abroad.  She currently lives and works in Athens.