Bahnbetriebswerk Neumünster, Railway depot in Neumünster, Germany.

Bahnbetriebswerk Neumünster is a railway maintenance depot in northern Germany with multiple service buildings, a turntable, and facilities designed for servicing steam and diesel locomotives. The complex preserves these historical vehicles and demonstrates how trains were repaired and maintained.

The depot grew out of the railway junction that formed in Neumünster from the 1840s, when the Altona-Kiel line of 1844 was joined by the Rendsburg line in 1845, the Ascheberg-Neustadt line in 1866, Bad Oldesloe in 1875 and Heide in 1877. It lost its independence in 1969, becoming an outpost of the Kiel depot, and was finally closed in 1988.

The site draws people interested in railway history, who come to see preserved locomotives and understand how trains shaped German industrial development. It reflects the pride once felt in maintaining these machines with care and precision.

The depot lies east of Rendsburger Straße and south of the Max-Johannsen-Brücke. Since 2005 the site has been ordinary railway operating land, and the DB Museum issued a ban on entering for liability reasons, so the grounds cannot be walked freely. The workshop building, locomotive management office, turntable and roundhouse still stand (as of 2019).

The turntable visitors see is the northern one, rebuilt after the air raid of 13 April 1945; the southern turntable with its 17 stands was not restored. The site closed as a depot in 1988 and was a DB Museum branch run by the Rendsburger Eisenbahnfreunde from 1988 to 2005, after which access was banned.