Ansbach, originally Onolzbach, is a city in Bavaria, Germany. It is the capital of the administrative region of Middle Franconia. Ansbach is situated 25 miles (40 km) southwest of Nuremberg and 90 miles (140 km) north of Munich, on the Fränkische Rezat, a tributary of the Main river. As of 2004, its population was 40,723.

Ansbach is location of the Ansbach University of Applied Sciences. The city is connected by the autobahn A6 and the highways B13 and B14. Ansbach station is on the Nürnberg–Crailsheim and Treuchtlingen–Würzburg railways and is the terminus of line S4 of the Nuremberg S-Bahn.

A Benedictine monastery at the place was founded around 748 by a Frankish noble, Gumbertus, who was later canonized. In the following centuries the monastery and the adjoining village (Onoldsbach) grew to become the town of Ansbach (called a town in 1221 for the first time).

The counts of Oettingen ruled over Ansbach until the Hohenzollern burgraves of Nuremberg took over in 1331. The Hohenzollerns made Ansbach the seat of their dynasty until their acquisition of the Margraviate of Brandenburg in 1415. However, after the 1440 death of Frederick I, Elector of Brandenburg, the Franconian cadet branch of the family was not politically united with the main Brandenburg line, remaining independent as "Brandenburg-Ansbach".