Walcker Orgelbau (also known as E. F. Walcker & Cie.) of Ludwigsburg, Baden-Württemberg, Germany, is a builder of pipe organs. It was founded in Cannstatt, a suburb of Stuttgart in 1780 by Johann Eberhard Walcker. His son Eberhard Friedrich Walcker moved the business to Ludwigsburg in 1820.
Walcker first became famous for the organ it built in the Paulskirche, Frankfurt, in 1833, which had 74 stops. Other important commissions followed rapidly, and Walcker became a pioneer of the "symphonic organ" style in Germany.
Known for distinguished installations and low output, the company built the organ in the Boston Music Hall in Boston, Massachusetts, Zagreb Cathedral in Zagreb, Croatia, University of Latvia and Riga Cathedral in Riga, Latvia. The Boston instrument is now at the Methuen Memorial Music Hall in Methuen, MA.
The largest Walcker organ in the world had 220 stops and over sixteen thousand pipes. It was built in 1930s for a state congress hall in Nuremberg and was destroyed by aerial bombings during World War II.
- History of the Walcker family
- University of Latvia Main hall organ, built in 1937
- Gerhard Walcker-Mayer The Organ in Riga Cathedral as viewed by the Walcker firm March 2003
- Magle, Frederik. "The Walcker Organ in Riga Cathedral". Retrieved 11 July 2007.