Eugenia Ruiz (born April 14, 1980, in Santiago del Estero, Argentina) is an Argentine actress, panelist, and medical doctor.

She began her acting career appearing in short films such as Pasionarias (2016) and in underground theatre productions. She later appeared in the feature film El Retiro (2019).

In 2025, she gained wider recognition as a contestant on Gran Hermano, the Argentine edition of the internationally renowned reality television franchise. Following her departure from the show, her first acting project was a micro-theatre season of the play Casting y Camorra, marking a new stage in her artistic career.