Leo Königsberger (15 October 1837 – 15 December 1921) was a German mathematician, and historian of science. He is best known for his three-volume biography[1] of Hermann von Helmholtz, which remains the standard reference on the subject.
In 1904 he was a Plenary Speaker of the ICM in Heidelberg.[3] In 1919 he published his autobiography, Mein Leben ('My Life'). The biography of Helmholtz was published in 1902 and 1903. He also wrote a biography of C. G. J. Jacobi.[2]