Eggenstein-Leopoldshafen is a municipality of almost 17,000 inhabitants located in the federal state of Baden-Württemberg in the Federal Republic of Germany. It lies about 12 km north of Karlsruhe and is the site of the northern campus of the research centre Karlsruhe Institute of Technology (with the former Forschungsreaktor 2 (FR2). In the west, Eggenstein-Leopoldshafen borders on the Rhine River and in the east it is connected with the Bundesstraße 36.

The two villages that make up the incorporated municipality evolved from medieval villages specializing in freshwater fishing and farming. Today, gravel extraction for construction purposes is important to the local economy, as is the cultivation of white asparagus (Spargel). Because of its location in the Rhine valley, hot humid summers are the norm for Eggenstein-Leopoldshafen. Numerous public beaches exist on the shores of artificial lakes that have been formed by extensive gravel extraction. Eggenstein-Leopoldshafen has numerous active community associations and sports clubs such as most notably TG Eggenstein 1894 e.V.. Eggenstein-Leopoldshafen is also home to the Sportpark Fassbender, a noted tennis school and training facility.