Puch (German pronunciation: [pʊχ] ⓘ) is a manufacturing company located in Graz, Styria, Austria.

The company was founded in 1899 by the industrialist Johann Puch and produced automobiles, bicycles, mopeds, and motorcycles.

Cyclists like Josef Fischer, winning the first edition of Paris–Roubaix in 1896, popularized Styria bicycles which were even exported to England and France.

Puch's company became successful through innovation and quality handicraft, rapidly expanding over time.

The main production plant, later called Einser-Werk, was constructed in the south of Graz, in the district of Puntigam.

Puch automobiles were successful at the pre-war Österreichische Alpenfahrt rally and from 1913, the four-cylinder 38 PS (horsepower) Type VIII Alpenwagen was manufactured in Graz.

In 1923 the Italian engineer and FIAT agent Giovanni Marcellino is said to have been sent by the banks to wind up the Puch factory in Graz.

Steyr-Daimler-Puch is one of the companies known to have benefited from slave labor housed in the Mauthausen-Gusen concentration camp system during World War II.

Slaves from the camp were used in a highly profitable system used by 45 engineering and war-effort companies, and amongst them Puch had an underground factory built at Gusen in 1943.

The late 1950s saw strong sales of the Puch 125cc two-stroke single motorscooters, which had three gears shifted from the left twistgrip.

These machines developed a reputation for reliability and were popular for daily commuting, providing good weather protection and ease of use.

In 1981 they worked with Speed Unlimited in Wayne, New Jersey to manufacture a line of high end BMX race bikes.

The layout had been popular in Europe between the wars because it improved scavenging, and hence fuel consumption, a feature considered less important in the US.

New models after World War II had an internal re-arrangement which improved piston lubrication, reducing wear on the most vulnerable part of the engine, while an early system of pumping the two-stroke oil, along with the twin spark-plug ignition, greatly improved day-to-day reliability.

Despite the racing heritage and performance potential of the split-single engine, this particular Puch model, with a top speed around 110 km/h (68 mph), was at a disadvantage against the loop-scavenged two-strokes that arrived in the late 1960s.

In 1970 Puch bought a 50% share of Spanish motorcycle and scooter manufacturer Avello located in the city of Gijón in Asturias, in northern Spain.

In 2011, Austrian entrepreneur Josef Faber took control of the brand, with the 2012 line of bicycles manufactured by Cycleurope in France.