Isidora Zegers Montenegro (also known as Isidora Zegers de Huneeus or Isidora Zegers; 1 January 1803 – 14 July 1869) was a Spanish musician and composer. She is known for her contributions to Chilean culture during the 19th century. She co-founded a weekly musical publication, and the Philharmonic Society of Santiago. She was honorary president of the National Academy of Music, and co-founded the Philharmonic Society of Santiago.