Ludwig Darmstaedter (9 August 1846 – 18 October 1927) was a German chemist and historian of science. From 1865 he studied chemistry under Robert Bunsen and Emil Erlenmeyer at the University of Heidelberg, then furthered his education in Leipzig as a student of Hermann Kolbe. Afterwards, he relocated to Berlin, where he performed studies on alkali fusion of sulfonic acids in the laboratory of Karl Hermann Wichelhaus. From 1872, with Benno Jaffé, he was involved with industrial chemical research; e.g. glycerin extraction. Later on in his career, he conducted investigations on the composition and synthesis of lanolin.