Eugene de Blaas, also known as Eugene von Blaas or Eugenio de Blaas (24 July 1843 10 February 1932) was an Italian painter in the school known as Academic Classicism. He was born at Albano, near Rome, to Austrian parents. His father Karl, a Jew and also a painter, was his teacher. The family moved to Venice when Karl became Professor at the Academy in Venice. He often painted scenes in Venice. He became professor in the Academy of Venice.
His colorful and rather theatrical period images of Venetian society, e.g. On the Balcony (1877; Private Collection), were quite different to delicate pastels and etchings of the courtyards, balcony and canals of modern Venice.
Eugene de Blaas' paintings are collected at the Royal Academy, Fine Art Society, New Gallery and Arthur Tooth and Sons Gallery in London, and also at the Walker Art Gallery in Liverpool.