Robert Haas (musicologist)

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Robert Maria Haas (15 August 1886, Prague – 4 October 1960, Vienna) was an Austrian musicologist.

At the beginning of his career with the Austrian national library, Haas was mostly interested in Baroque and Classical music. Later on, he was engaged by the newly formed International Bruckner Society to work on a complete edition of Anton Bruckner's symphonies and Masses based on the original manuscripts bequeathed by the composer to the Vienna library.