Piran Musical Evenings is an international festival of chamber music held in the Slovene coastal town of Piran. Launched in 1978, it is the oldest festival of chamber music in Slovenia. Organised by Portorož Auditorium, it traditionally takes place in the cloister of the old Franciscan Monastery in Piran. It is sometimes also held in Tartini Theatre or in the Church of St Francis, with the organ concerts being held in St George's Church. The performances present classical choral works, sometimes diversified by opera or even flamenco works.
The festival, usually held on four to five consecutive Thursdays or Fridays in July and August, has in recent years hosted chamber orchestras like the Ensemble Phoenix Munich, the Nova Schola Labacensis, the Musica cubicularis, Cappella Istropolitana, Martinu Quartet, Salzburg Soloists Chamber Quartet, the Slovene Philharmonic String Chamber Orchestra, Croatian pianist Lovro Pogorelić, and American soprano Kristin Lewis.
Additional festival locations include the Church of the Vision of St Mary in Strunjan, or the Church of St Mary of the Rose in the neighbouring town of Portorož.