Bruno Keil (8 July 1859 in Havelberg – 23 March 1916 in Leipzig) was a German classical philologist.
As a student, his influences were Ulrich von Wilamowitz-Moellendorff, Georg Kaibel and Rudolf Hercher.
He took scientific travels to Italy, Spain and France, and beginning in 1888, worked at the Sophiengymnasium in Berlin.
In 1890 he became an associate professor at the University of Strasbourg, where he gained a full professorship in 1901.
[1] In addition to Isocrates, his academic research including studies of the ancient rhetoricians Aeschines and Demosthenes, the Second Sophistic orator Aelius Aristides and the satirist Lucian.