Marta Abba (June 25, 1900 in Milan, Italy – June 24, 1988 in Milan) was an Italian actress who had a relationship with the famous Italian Nobel Prize winner playwright Luigi Pirandello. Marta Abba is most famous for her personal and artistic relationship with Luigi Pirandello. She was the sister of another actress, Cele Abba. After their meeting in 1923 and until his death in 1936, Marta Abba was the stimulus to Pirandello's creativity.