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Großostheim
Municipality
Aerial view
Coat of arms
Location of Großostheim within Aschaffenburg district
Großostheim Show map of Germany Großostheim Show map of Bavaria
Coordinates: 49°55′N 9°5′E / 49.917°N 9.083°E / 49.917; 9.083
Country	Germany
State	Bavaria
Admin. region	Unterfranken
District	Aschaffenburg
Government
• Mayor (2020–26)	Herbert Jakob[1] (CSU)
Area
• Total	44.31 km2 (17.11 sq mi)
Elevation	137 m (449 ft)
Population  (2024-12-31)[2]
• Total	15,873
• Density	360/km2 (930/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	63762
Dialling codes	06026
Vehicle registration	AB
Website	www.grossostheim.de

Großostheim (or Grossostheim) is a market town in the Aschaffenburg district in the Regierungsbezirk of Lower Franconia (Unterfranken) in Bavaria, Germany. The inhabitants call themselves Aistmer (ostheimers).

Großostheim is on the northeast edge of the Odenwald in the Bavarian Lower Main (Bayerischer Untermain) region.

Großostheim's Ortsteile are Großostheim, Pflaumheim, Wenigumstadt and Ringheim.

Clockwise from the north, these are the community of Stockstadt, the district-free town of Aschaffenburg, the community of Niedernberg, the community of Mömlingen (both in Miltenberg district) and the community of Schaafheim (Darmstadt-Dieburg).

Together with Stockstadt am Main and the neighbouring Hessian community of Schaafheim, the market community forms the historic Bachgau region.

Within the municipal area lived 12,788 inhabitants in 1970, 13,514 in 1987, 15,913 in 2000 and 16,299 in 2004.

The mayor is Herbert Jakob (CSU), elected in April 2014 and re-elected in 2020.

The income from municipal taxes in 1999 amounted to €9,751,000 (converted) of which net intake from business taxes amounted to €3,180,000.

There are the following institutions (as at 2007):

• Kindergartens: 675 kindergarten places with 652 children
• Elementary schools: 5 with 72 teachers and 1,234 pupils

• Otto Becker (1958–    ), German show jumper
• Heinrich Hock (1887–1971), German chemist
• Prof. Dr. Rudolf Schüßler (1960–    ), German (moral) philosopher

This section needs more sources for verifiability. Please help improve this article by adding reliable sources. Unsourced material may be challenged or removed. Find sources: "Großostheim" – news · newspapers · books · scholar · JSTOR (August 2016) (Learn how and when to remove this message)

• Carbon-Blanc, Gironde, France^[source?]
• Saulxures-sur-Moselotte, Vosges, France^[source?]
• Hamoir, Liège Province, Belgium^[source?]

• Wolfgang Hartmann: 1200 Jahre Großostheim. Großostheim 1999
• Frank Schmelz: Lineare anthropogene Gehölz- und Saumstrukturen im Bachgau (Gmde. Großostheim, Lkrs. Aschaffenburg). Gießen 2001

Wikimedia Commons has media related to Großostheim.

• Bavarian Lower Main history portal (in German)
• Großostheim in National Socialist times, documentation (in German)