Joana Isabel de Alvim Ribeiro (March 25, 1992) is a Portuguese actress and model. Joana Ribeiro was born on 25 March 1992 in Lisbon, Portugal to an engineer father and veterinarian mother.

She studied first at the Luís Madureira School in Alfragide, and then completed secondary studies in Lisbon. Ribeiro initially studied architecture, but changed her focus to acting. She signed with an agency, Lisbon Elite, and played in the short film Herança do Silêncio (Silent Inheritance).