Ștefan Emilian (August 8, 1819 – November 1899) was an Imperial Austrian-born Romanian mathematician and architect.
Then, from 1841 to 1845, he studied at the Academy of Fine Arts Vienna, graduating with an architect's degree.
By 1850, he was back in Transylvania, where he taught mathematics at Brașov's Greek Orthodox High School.
[1] In 1858, he was invited to Iași, the capital of Moldavia, in order to teach drawing and geometry to the upper classes of Academia Mihăileană.
A single published book of his is known: the 1886 Curs practic de perspectivă liniară.