Church of Saint Martin
|• Mayor||Matthias Becker (CDU)|
|• Total||17.09 km2 (6.60 sq mi)|
|Elevation||151 m (495 ft)|
|• Density||260/km2 (680/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
Finds in the municipal area have yielded the first clues to settlers here in the 4th century BC. In AD 97, the former consul Vejento had a temple built to the forest goddess Nemetona near his Klein-Winternheim landholding, a richly furnished Roman settlement in the Ober-Olm cadastral area of Villenkeller. Ober-Olm itself arose in the 6th century as a Frankish establishment and had its first documentary mention in 994. The name “Ulmena Superior” from 1190 was formerly associated with elm trees, Ulme being the Modern High German word for this tree; however, this word was not borrowed into German from Latin (ulmus) until the 12th century. The formation of the placename Ulm and an ending —ena is typical for a brook's name, and these were often also used as placenames. It can be assumed that Ulmena was the name that the Germanic settlers between Ober-Olm and Nieder-Olm gave the Selz. The few Roman people left still used the name Salusia for the brook, which was the name that eventually stuck to it. Ulmena, however, remained as well, and clove to both the centres now bearing Olm as part of their names.
In 1582, 1603 and 1857, Ober-Olm was destroyed by devastating fires.
Many ecclesiastical and monastic institutions had landholdings in the municipality, among whom were, for example, Eberbach Abbey, the Maria Dalheim monasteries in Mainz, the Dominicans and the Carthusians, the White Ladies (an order of nuns devoted to Mary Magdalene) in Mainz and All Hallows’ Monastery in Wesel. Furthermore, the Cathedral Chapter in Mainz, the Ravengiersburg Monastery, Saint John's Church in Mainz, Saint Stephen's Church in Mainz, Mariengreden, Saint Victor's and Saint Peter's were all landholders.
In 2003, the German-Pennsylvanian Association was founded in Ober-Olm. It's also the village, where the German-Pennsylvanian newspaper Hiwwe wie Driwwe is published by the German-Pennsylvanian Archive in cooperation with the Pennsylvania German Cultural Heritage Center at Kutztown University, Pennsylvania.
World War II
German antisemitism under the Nazis became increasingly difficult in the years prior to World War II. Jews had lived in Ober-olm and surrounding small towns for hundreds of years, from at least the time of the Middle Ages. Jewish residents were well-integrated into the life and commerce of these towns. For a brief time, antisemitic laws were less rigorously enforced in Obel-olm than in neighboring large cities such as Mainz and Frankfurt. During those years, a few Jewish residents of these cities sent their children to live with "country cousins" in Ober-olm, hoping that their children would be able to continue to attend school and live undisturbed. But as antisemitic laws became more harsh -- for example, when Jews were no longer permitted to have checking accounts to conduct business -- Jewish residents were not able to make a living and suffered greatly.
Some Jewish residents of Ober-olm were fortunate to be able to obtain visas for the United States and were able to emigrate to safety. Others were not so fortunate, and perished as a result. 
During the Western Allied invasion of Germany in April 1945, the nearby Luftwaffe Mainz-Finthen airfield was seized by the United States Third Army, and used by the USAAF 354th Fighter Group which flew P-47 Thunderbolts from the aerodrome (designated ALG Y-64) from 8 to 30 April 1945. Acquired for use by the United States Army after the conclusion of the war, the former German Luftwaffe fighter base was named Finthen Army Airfield and has been used by Army aviation units ever since.
The council is made up of 20 elected council members, in addition to the unsalaried, directly elected mayor. The mayor has voting rights just like the other council members. The seats divided by party membership:
(as per municipal election held on 7 June 2009)
There are also friendship arrangements with the following places:
- Bobrowice, Lubusz Voivodeship, Poland
- Bruck in der Oberpfalz, Schwandorf district, Bavaria
- Seebach, Ortenaukreis, Baden-Württemberg
- Seiffen, Erzgebirgskreis, Saxony
- Wolfsegg am Hausruck, Upper Austria, Austria
- Saint Martin's Church (Martinskirche) with a tower from Carolingian times and a statue of Saint Urban from the 16th century.
- Hunting lodge of the Electors of Mainz (Altes Forsthaus) from 1764.
- Ober-Olmer Wald (forest), a 335-hectare recreation area.
- Saint Valentine's Chapel (Valentinskapelle) with its Rococo altar, which stands picturesquely on the edge of the vineyards.
- The 650-year-old elm tree had to be cut down in 1985 after it fell victim to Dutch elm disease.
- Renovated Town Hall from 1550, floors added in 1721-1722.
Economy and infrastructure
- The Autobahn A 63 lies approximately 3 km away.
- The Deutsche Bahn railway station Klein-Winternheim/Ober-Olm on the Alzey–Mainz railway is found in neighbouring Klein-Winternheim.
- City bus link to Mainz as far as Hochheim (route 68) and ORN bus links (regional route 650) to outlying areas in Rhenish Hesse as well as into the city of Mainz in the evening and back until after midnight.
The Ober-Olm Transmission Tower (Fernmeldeturm Ober-Olm) was built as a 70.35 m-tall tower for Deutsche Telekom in 1966. Its nicknames include “Olmi”, “Ober-Olmer Spargel” (Spargel means “asparagus” in German) and “Fernsehturm” (“Television Tower”). It stands at . In 1990, the transmission tower had another 38 m built onto the top, bringing its current height to 108.35 m.
- Ulmenhalle, a multi-purpose hall at Essenheimer Straße 17a
- Sport facility with artificial-turf football pitch and competition-standard athletic facility, Am Sportplatz (location)
- Kindergarten Abenteuerland (“Kindergarten Adventureland”), Pfannenstiel 36
- Kindertagesstätte St. Elisabeth (daycare centre), Essenheimer Straße 17
- Grundschule Ober-Olm (primary school), Schulstraße, sponsor: Verbandsgemeinde Nieder-Olm
- Kreisvolkshochschule (KVHS, district folk high school), Ober-Olm branch, Schulstraße 2
- Margit Sponheimer
- Dr. Michael Werner (Publisher)
- Franz Nikolaus Becker
- Father Henri Thiebaut, Ramonchamp
- Heribert Schmitt et al.: Das Dorf, in dem wir leben, Ober-Olm. Geiger-Verlag, Horb am Neckar 1994, ISBN 978-3-89264-913-7
- Maria Regina Kaiser: Die Trommeln der Freiheit novel, 1848 - Märzrevolution in Mainz, 1998, ISBN 3-00-003678-4
- Claudius Moseler: Der Ober-Olmer Wald - Raumnutzungsansprüche, Gefährdungspotentiale und Nutzungskonkurrenzen in einem rheinhessischen Waldareal Diplomarbeit Geographie, Uni Mainz, 1992
- "Bevölkerungsstand 2018 - Gemeindeebene". Statistisches Landesamt Rheinland-Pfalz (in German). 2019.
- "Archived records and personal recollections of the Mayer family". Leo Baeck Institute, New York and Berlin. Retrieved July 17, 2018.
- 354 Operations Group Fact Sheet, USAFHRA Archived 2013-01-04 at the Wayback Machine
- USAAF Airfields in the ETO
- AAF Airfields in France, Belgium, Netherlands, Luxembourg Archived January 6, 2009, at the Wayback Machine
- Finthen Army Airfield History
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