Krumbach, Swabia (district) was until 1972/07/01 a district in Swabia in the southwest of Bavaria, Germany. Krumbach was the capital of this district. The carsign was KRU.
The district had 49 municipalities. The largest of them were the towns Krumbach, Bavaria and Thannhausen and the municipalities Ziemetshausen, Neuburg an der Kammel and Ursberg.
In 1972 the district became together with Günzburg (district) and the urban district Günzburg, the Günzburg district in today's form.