Heusenstamm (German pronunciation: [ˈhɔʏzn̩ˌʃtam] ⓘ) is a town of over 19,000 people in the Offenbach district in the Regierungsbezirk of Darmstadt in Hesse, Germany.

The lowest natural point is the Bieber's riverbed, and the highest is the Hoher Berg ("High Mountain").

After the Lords of Heusenstamm died out in 1616, the castle and the lordship passed to the family's Austrian sideline, who then leased the place to the Frankfurt patrician Stephan von Cronstetten.

In 1661, the lordship over Heusenstamm, to which also belonged the places of Obertshausen and Hausen, was sold to the Mainz Oberamtmann (chief local administrator) Philipp Erwein von Schönborn.

When Holy Roman Emperor Franz I was living at Schloss Heusenstamm in 1764 on the occasion of his son's coronation (Goethe relates the event in his Dichtung und Wahrheit), an ostentatious tower was built in his honour, which stands to this day.

The subsidiary T-Systems Business Services GmbH and the landline division maintain large real estate holdings in the town of Heusenstamm.

Furthermore, BKK Mobil Oil, through its merger in 2008 with the former Krankenkasse Eintracht Heusenstamm (both the old and merged companies are institutions for sponsoring health insurance), has a seat here.

Important sport clubs in Heusenstamm are: The municipal election held on 26 March 2006 yielded the following results: The town's arms might be described thus: Argent an oak tree eradicated sprouting six leaves vert with three acorns Or, and a chief dancetty gules.

The chief (the red part at the top of the escutcheon) with its dancetty (zigzag) edge is drawn from the arms once borne by the Lords of Heusenstamm.

The Kelterfest in autumn, staged by the Konkordia singing club, has established itself as a regular event in Heusenstamm.

Both are popular outing destinations for citizens, school classes and those who are interested owing to populations of rare animal and plant species.

[citation needed] The Catholic Saint Cecilia's Parish Church (Pfarrkirche St. Cäcilia) was built in 1739 by well-known Baroque architect Johann Balthasar Neumann by appointment from Countess Maria Theresia von Schönborn, and it was given its ceiling frescoes in 1741 by Christoph Thomas Scheffler.

The Protestant Gustav Adolf Kirche with its onion dome and steep roof was completed in 1923 with Swedish and American support.

On weekdays trains are half-hourly (quarter-hourly during rush-hours), and have since late 2006 been run with modern DBAG Class 423 rolling stock.

At night and on the weekends from Saturday afternoon, a share taxi takes over public transport within town, including Rembrücken.

The Offenbach-Post, whose publishing house has its seat in Offenbach am Main, reports regularly in its regional section about Heusenstamm.