Evanthia Reboutsika is a Greek musician and composer.

She was born and raised in Kato Achaia, Patras. She is one of the four siblings of the Reboutsika family along with Ioanna, Plutarchos and Maria. Her father owned the REX cinema. She started learning the violin at the age of 6, studying at the Patras Conservatory with teachers Miltiadis Papanikolaou and Akindynos Kaimakis. The Reboutsika brothers' quartet tours in Greece and abroad and in 1970 she moved to Athens where she continued her music studies with Tatsis Apostolidis at the Athens Conservatory and then with Stelios Kafantaris at the Hellenic Conservatory. She has collaborated with leading Greek composers and performers.

From 1970 to 1979, Evanthia Reboutsika collaborates with great Greek composers and performers, collaborations that continue even after 1979 when she returns from Paris, completing her studies at the École Normale de Musique.

This is followed by collaborations with the Symphony Orchestra of the third program as well as with the Contemporary Orchestra of ERT, with which he also tours during the presentation of Axion Esti with Mikis Theodorakis.