Ottensheim has existed as a municipality since 1848. At this time and until 1893 the now self-contended municipality Puchenau also belonged to Ottensheim. In 1871 the first ferry over the Danube was installed. It was destroyed by an ice jam eight years later, and rebuilt in 1882. In 1964 the now still working ferry boat was built. Every year since the 1990s an alternative music festival for about 2,000 people takes place on the Rodl park near the Danube river, the Open Air Ottensheim, where local and international rock, hip-hop and experimental music acts take place.
