Netphen (German pronunciation: [ˈnɛtfən]) is a town in the Siegen-Wittgenstein district, in North Rhine-Westphalia, Germany.

Netphen lies on the Rothaargebirge's southern slope and forms the natural boundary of the Wittgensteiner Land.

[3] The constituent community of Beienbach lies at the end of a small side dale of the Sieg between Netphen and Deuz and is fringed by spruce and broadleaf forest on the heights and by agricultural areas as well as old "fruit meadows" (where various fruit trees grow) right at the edge of the community.

Dreis-Tiefenbach is, with its population of about 5300, Netphen's biggest constituent community, lying about 262 to 350 m above sea level on an area of some 7.5 km2.

The community ranges from 350 to 540 m above sea level, and roughly 70% of it is wooded, with the rest made up of fields, meadows, and built-up areas.

The heart of the village consists mainly of half-timbered houses protected as monuments and built in the 17th and 18th centuries.

As of June 2005, Grissenbach is home to 894 people, giving it a population density of 194/km2, considerably lower than the average for the Federal Republic of Germany (about 230/km2).

From the entrance to the Geiersgrundbach Valley to the boundary with Bad Laasphe, the difference in elevation is 190 m. The community has developed from one of small handicraft businesses and independent farmers to an industrial community nowadays, with two prefabricated house companies, one mechanical workshop and four service-sector businesses setting up shop here.

The advantageous transport links have also had something to do with revitalizing the hiking trails along the Rothaarsteig, 7 km of which run through Hainchen.

Things to see there include the Mahnglockenturm (bell tower), the Backes (an old bakehouse), the old mill and Saint Elisabeth's Chapel.

Lying in the middle of the Rothaargebirge, Herzhausen is even now still shaped by agriculture and forestry as well as ancient Siegerland traditions such as the Hauberg (a long-standing practice of coöperative forestry in this region) or the Martinsfeuer, or Saint Martin's Fire, a custom on Saint Martin's Day (11 November).

The pristine nature, to say nothing of the outstanding views when the weather is good, has led the Lahnhof to become, just as was also true one hundred years ago, one of the best loved local outing destinations from near and far.

Since at least 1920 there has been in Salchendorf a youth association called the Wurstekommission (see Helgersdorf above) which has about 50 active members, 14 of whom are on the council of elders.

Geographically, Walpersdorf, the first place on the river Sieg, lies at the edge of the Rothaarsteig hiking trail.

Werthenbach's earliest mentions: In 1343, the Lords of Bicken relinquished an estate (actually a Hauberg – see Herzhausen above) to the villagers in what was then called Wertinbracht as long as they paid a yearly fee for this favour to the Monastery of Keppel.

Critics hold that it is unfair that rather than private houses, holiday cottages are being built on these lots.

Here, as in most parts of the old Siegen district, the princely House of Nassau is named as the local overlords.

Napoleon added the Siegerland to the Grand Duchy of Berg as part of his rearrangement of Germany.

The focus is on the Netpherland economy with tanning, charcoal making, the Hauberg forestry system, the practice of Hude ( ≈ silvopasture) and beekeeping.

Netphen has a leisure park with a tennis hall, an ice stadium and an indoor swimming pool.

The tennis hall and ice stadium were completed in October 1976, and on 14 May 1977 opened together with the indoor swimming pool.

The plant for AMOVA manufactures a variety of goods handling systems, for the aviation, port logistics, and metal fabrication industries.

The traditional business can look back on a 180-year history, and was the first company in Germany to make chilled cast iron rollers.

The firm began on 1 May 1939 as a limited partnership for the purpose of making machines and apparatuses and also pursuing trade in the same, under the name Maschinenfabrik M Heitze, Kommanditgesellschaft, and under the personally liable partner, millwrighting master Martin Heitze, the engineer Edmund Dietrich and the director Ernst Zimmermann.

By late 1939, the first works hall with a floor area of 600 m2 was in place, and it was equipped with 3 lathes, 1 drilling machine, 1 handheld welding site and 5 millwrighting workplaces.

The main road to the town is Federal Highway (Bundesstraße) B 62, crossing the municipal area from southwest to northeast.

The world's first motorised bus route ran through the town, operated by the Netphener Omnibus-Gesellschaft as Siegen-Netphen-Deuz.

It opened on 18 March 1895 with one bus powered by a single-cylinder petrol engine supplied by Benz & Cie. Local passenger transport now is supplied by Verkehrsgemeinschaft Westfalen-Süd (VGWS)(South Westphalia Transport Community) bus routes.

The town is connected to regional air travel through the Siegerland Airport in Burbach, southwest of Netphen.