Leonhard Romeis (13 January 1854, in Höchstadt an der Aisch – 17 November 1904, in Munich) was a German architect of historicism.
Between 1886 and 1904 he designed numerous villas for artists and publicists in Munich, including the houses for Anton Heß, the genre painter Eduard von Grützner, the publisher Georg Hirth and the brewer Joseph Schülein.
He also planned the Richard-Wagner-Straße street with the Royal School of Applied Arts (Female Department) and the apartment building at Schackstraße 2.
Today it is considered one of the most important artistic examples of Neo-Romanesque sacral architecture in southern Germany.
His planned country house, Aribostrasse 1, in Rottach-Egern (Egern district), which was completed in 1905, is also entered on the list of protected monuments.