Henri Fehr (Zurich, 2 February 1870 – Geneva, 2 November 1954) was a Swiss mathematician.
His doctoral dissertation was about the method of Grassmann vectors applied to differential geometry.
Fehr was professor of the University of Geneva and later dean, vice-rector and rector.
He was considered an pedagogue with an interest for the social aspects of the mathematics community and for the academic life.
He was an Invited Speaker at the ICM in 1904 in Heidelberg,[3] in 1908 in Rome, in 1912 in Cambridge, England,[4] in 1924 in Toronto,[5] and in 1932 in Zürich.