|Mülheim an der Ruhr|
View of Mülheim's centre
|District||Urban districts of Germany|
|• Lord Mayor||Ulrich Scholten (SPD)|
|• Total||91.26 km2 (35.24 sq mi)|
|Elevation||26-153 m (−476 ft)|
|• Density||1,900/km2 (4,800/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
Mülheim an der Ruhr (German pronunciation: [ˈmyːlhaɪm ʔan deːɐ̯ ˈʁuːɐ̯] ( listen)), also described as "City on the River", is a city in North Rhine-Westphalia in Germany. It is located in the Ruhr Area between Duisburg, Essen, Oberhausen and Ratingen. It is home to many companies, especially in the food industry, such as the Aldi Süd Company, the Harke Group and the Tengelmann Group.
Mülheim received its town charter in 1808, and 100 years later the population exceeded 100,000, making Mülheim officially a city. At the time of the city's 200th anniversary with approximately 170,000 residents, it was counted among the smaller cities of Germany.
Mülheim was the first city in the Ruhr Area to become completely free of coal mines, when its last coal mine "Rosenblumendelle" was closed. The former leather and coal city had successfully made a complete transformation to a diversified economic centre. With more than 50% covered by greenery and forest, the city is regarded as an attractive place to live between Düsseldorf and the rest of the Ruhr. It is the home of two Max Planck Institutes and, since 2009, the technical college Ruhr West. It has a station on the important railway between Dortmund and Duisburg and is served by Rhine-Ruhr S-Bahn lines S1 and S3.
The Ruhr leaves the foothills of the Rhenish Massif and enters the Lower Rhine Plain at Mülheim. The Ruhr flows through the city from south-east to north-west for a distance of 14 km (9 miles) dividing it into two districts: Broich on its left (western) bank and Kirchenhügel (Church Hill) on its right (east) bank. The central city lies on both banks of the river, about 12 kilometres (7 miles) east of where the Ruhr discharges into the Rhine. Life in Mülheim is intermediate between the more urban, downstream, Düsseldorf and the more rural life of the upstream Ruhr. 
The northern foothills of the Rhenish Massif are characterised by the distinctive rock formation of the bare mountain slopes through which run coal-bearing layers which formed during the carboniferous period. Here the Ruhr cuts more than 50 meters deep into this Mittelgebirge. This natural erosion partly uncovered these mineable black coal deposits, which enabled their exploration and extraction using adits. However, the coal-rich layers became ever deeper as one progressed northward, which required setting up mines to extract the black coal. In contrast, the broad bayou (dead arm of a river) of Styrum borough is characteristic of the features of the Lower Rhine Plain.
- Darlington, Darlington, England, United Kingdom, since 1953
- Tours, Indre-et-Loire, Centre-Val de Loire, France, since 1962
- Kuusankoski, Finland, from 1972 to 2008
- Opole, Opole Voivodeship, Poland, since 1989
- Kfar Saba, Israel, since 1993
- Istanbul-Beykoz, Turkey, since 2007
- Kouvola, Finland, since 2009
- Qalqilyah, Palestine, friendship
- Wilhelm Rittenhausen (born 1644), founder of the first paper mill in North America.
- Gerhard Tersteegen (born 1697), a Reformed religious writer.
- Carl Arnold Kortum (born 1745), a physician, best known for his writing and poetry.
- August Bungert (born 1845), an opera composer and poet.
- Hugo Stinnes (born 1870), an industrialist and founder of the German People's Party.
- Fritz Thyssen (born 1873), an industrialist associated with the Nazi Party of Adolf Hitler.
- Carl Otto von Eicken (born 1873), an otorhinolaryngologist.
- Heinrich Thyssen (born 1875), a German-Hungarian entrepreneur and art collector.
- Arthur Kaufmann (born 1888), an influential painter.
- Walter Hartmann (born 1891), a general of Artillery, serving during World War II.
- Otto Pankok (born 1893), a painter, printmaker, and sculptor.
- Otto Roelen (born 1897), a chemist.
- Karl Ziegler (born 1898), a chemist who won the Nobel Prize in Chemistry in 1963, with Giulio Natta, for work on polymers.
- Clärenore Stinnes (born 1901), a car racer; who was the first human to circumnavigate the world by automobile.
- Werner Best (born 1903), a jurist, police chief, and Nazi leader.
- Fritz Buchloh (born 1909), a football goalkeeper at two World Cups in 1934 and 1938, who played for VfB Speldorf.
- Günther Smend (born 1912), an officer and a resistance fighter involved in the July 20 Plot to assassinate Adolf Hitler.
- Johannes Bölter (1915-1987), a German Army tank commander during World War II.
- Karl Albrecht (born 1920), an entrepreneur who founded the discount supermarket chain Aldi with his brother Theo and among the richest men in the world.
- Theo Albrecht (born 1922), an entrepreneur who was ranked as the 20th richest person in the world by Forbes magazine in 2007.
- Wilhelm Knabe (born 1923), an ecologist, pacifist, civil servant, politician and a co-founder of the Green Party in Germany.
- Wim Thoelke (born 1927), a TV entertainer.
- Jürgen Sundermann (born 1940), a manager and former footballer.
- Hans Walitza (born 1945), a retired football striker and manager.
- Rudolf Seliger (born 1951), a former football striker, who played for MSV Duisburg.
- Bodo Hombach (born 1952), a politician and Member of the SPD.
- Monika Griefahn (born 1954), a politician of the SPD.
- Hans-Günter Bruns (born 1954), a retired footballer.
- Helge Schneider (born 1955), a comedian, jazz musician, author, film and theatre director, and actor.
- Ralph Morgenstern (born 1956), a television presenter and actor.
- Ulla Kock am Brink (born 1961), a television presenter
- Hannelore Kraft (born 1961), a politician (SPD) and Minister-President of North Rhine-Westphalia.
- Ralf Lübke (born 1965), a retired athlete who specialized in the 200 metres.
- Willi Landgraf (born 1968), a soccer player, currently playing for the amateurs of Schalke 04.
- Sven Meinhardt (born 1971), a field hockey forward, who won the gold medal at the 1992 Summer Olympics.
- Kai Gehring (born 1977), a politician.
- André Lenz (born 1973), a football goalkeeper.
- Lars Burgsmüller (born 1975), a tennis player.
- Marion Rodewald (born 1976), a field hockey defender, who won the gold medal at the 2004 Summer Olympics.
- Felix Erdmann (born 1978), a rowing cox.
- Simone Hanselmann (born 1979), an actress.
- Salih Altın (born 1987), a football player.
- "Amtliche Bevölkerungszahlen". Landesbetrieb Information und Technik NRW (in German). 18 July 2016.
- "Mülheim an der Ruhr official website – The new Mülheim". (in English, German and French) © 1998–2010 MST Mülheimer Stadtmarketing und Tourismus GmbH. Retrieved 2010-02-12.
- "Mülheim an der Ruhr official website – Eine kurze Geschichte zur Geologie und zur Geographie des Stadtgebietes". (in only German) © 1998–2010 MST Mülheimer Stadtmarketing und Tourismus GmbH. Retrieved 2010-04-19.
- "Mülheim an der Ruhr". Urban Rail. Retrieved 21 November 2015.
- "Miasta Partnerskie Opola" (in Polish). Urzad Miasta Opola. Archived from the original on August 1, 2013. Retrieved 2013-08-01.
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