Ludwig Meyer (27 December 1827 – 8 February 1900) was a German psychiatrist born in Bielefeld.
In 1852 he obtained his medical doctorate from the University of Berlin, afterwards working as an assistant at Charité Hospital.
Later he worked as a doctor at the insane asylum in Schwetz, and in 1856 was appointed chief physician at the city hospital in Hamburg.
Meyer performed important research on the inflammatory nature of brain changes in general paresis.
[1] In 1867, with Wilhelm Griesinger (1817–1868), he founded the Archiv für Psychiatrie und Nervenkrankheiten.