Emil Weyr (31 August / 1 September 1848 – 25 January 1894) was an Austrian-Czech mathematician, known for his numerous publications on geometry.

[3] Emil had planned to travel to Paris to undertake a study break during the autumn of 1870, but due to the German-French War the destination for this venture changed to Milan.

Later this year he got the chance to put his studies on hold to travel around Italy and visit the different universities and meet fellow colleagues, some of whom he would stay in touch with.

[3] His relationship with Luigi Cremona emphasises how significant this trip was for Weyr, highlighted by their constant letters to each other in the twenty-one-year period following their first meeting.

Emil originally wrote letters to Cremona as one would talk to a mentor, in a position of less prestige.

[3][4] On 6 February 1870 Weyr was inducted into the Union of Czech Mathematicians, which he would be given the chairman role of on 7 July 1872.

In this role he created a library of scientific resources and would participate in events centred on publishing.

[3] Emil was made the adjunct professor of maths at the Prague Polytechnic in 1871, where he would begin to lecture at the university.

[2][4] In 1890 Weyr and Gustav Ritter von Escherich created the mathematical journal Monatshefte für Mathematik und Physik, the first few editions of which would include his brother Eduard's work.