Anton Heiller (1923–1979) was an Austrian organist, conductor, and composer, primarily known for his contributions to classical music and sacred music. Heiller was particularly renowned for his exceptional skill as an organist, often associated with the Baroque repertoire and the works of Johann Sebastian Bach. His performances and recordings showcased a deep understanding of the instrument and its historical context. Heiller's notable works include his recordings of Bach’s organ compositions, which are considered exemplary interpretations. He was also known for his performances of works by composers such as Buxtehude and Mendelssohn. In addition to his organ music, Heiller composed a number of choral and orchestral works, leaving a significant impact on church music in Austria. As a conductor, Heiller led various ensembles, including the Vienna State Opera and the Vienna Philharmonic, contributing to the interpretation of both historical and contemporary music. His influence extended through his teaching, where he inspired a generation of musicians. Heiller is remembered for his dedication to preserving and promoting the organ repertoire, solidifying his place in the history of classical music.