Joseph Elsner (29 September 1845 in Schlaney, Silesia – 3 March 1933 in Munich) was a German architect and designer of Historicism (art).
Elsner's work focused mainly on the interior of Catholic churches in Munich, Bavaria, and in his home region, Silesia. His mentor was .In 1876 he married Walburga Hauser (1857–1924). They had 13 children, six of whom died as infants or toddlers.
His son, (1879–1970), was also an architect.