Julius Blüthner Pianofortefabrik GmbH is a piano-manufacturing company in Leipzig, Germany. Composers who used Blüthner include Brahms, Debussy, Wagner, Strauss, Tchaikovsky, Rachmaninoff, and the Beatles among others.

After a long and difficult campaign to gain Leipzig citizenship, Julius Blüthner established his workshop in Leipzig, Saxony in 1853. In the beginning he employed three other craftsmen.

By 1900 Blüthner had become the largest piano maker in Germany, producing some 5,000 instruments annually. Innovations such as the aliquot string (an additional string on high treble notes that improves their tone by vibrating sympathetically), as well as a cylindrical soundboard and angle cut hammers, created a unique voice for the Blüthner instrument.

The owners in 1917 (Adolf Max Blüthner, Dr. Paul Robert and Willy Bruno Heinrich) were awarded an imperial and royal warrant of appointment to the court of Austria-Hungary.

In 1936, Blüthner was selected to build the piano for the airship Hindenburg.

In 1943, during World War II, an air raid destroyed the Blüthner factory.

After the war, Dr. Rudolf Blüthner-Haessler rebuilt the company; production of pianos resumed in 1948.

In 1972, the company was nationalized by the East German government, with Ingbert Blüthner-Haessler remaining as managing director.