Gut Staltach, Historic estate in Iffeldorf, Germany.

Gut Staltach is a historic estate south of Munich in Iffeldorf, Upper Bavaria, beside the Kochelseebahn railway. It grew from three Staltach farms bought in 1856–1858 for peat cutting, and under Josef Anton von Maffei and his heir Hugo it came to cover almost 1000 hectares. Its buildings served peat works, a brewery and agriculture.

In 1856 Munich businessman Wilhelm von Weber bought the first two Staltach farms for peat extraction, adding the third in 1858. In 1861 Josef Anton von Maffei, son of an Italian living in Munich, bought the estate for 150,000 gulden to supply peat to his locomotive works; purchases and exchanges worth some 350,000 gulden expanded it to nearly 1,000 hectares. His nephew Hugo built the brewery in 1871–1874 and opened the estate's own hospital in 1877; the brewery was sold to Paulaner in 1927 and operations ceased in 1961.

The estate's name comes from the hamlet of Staltach, and its brewery, built 1871–74, produced about 6,000 Scheffel of beer a year before being sold to Paulaner in 1927. Hugo von Maffei ran the estate with a large household staff and opened its own hospital in 1877. The former peat works and farm buildings still mark the grounds.

Gut Staltach lies south of Munich in Upper Bavaria, on the Kochelseebahn line near Iffeldorf. The grounds are reached by road from the surrounding villages; the estate is a private working property, so visits are tied to events or prior arrangement rather than open sightseeing.

Josef Anton von Maffei bought the Staltach estates in 1861 for 150,000 gulden to supply peat to his Munich locomotive works. By 1870 he had expanded the land to almost 1,000 hectares through exchanges and purchases worth around 350,000 gulden, and he used the country house he built here as his summer residence.