Émetteur TV de Nordheim-Strasbourg, Television transmitter in Nordheim, France

The Nordheim-Strasbourg transmitter is a 280-meter tall structure perched on Stephansberg hill, located roughly 21 kilometers northwest of Strasbourg. The facility broadcasts digital television across multiple channels and also carries FM radio signals and mobile phone networks serving the surrounding area.

The first broadcast site was at the Maison de la Radio on place de Bordeaux in Strasbourg, the third television site in France after Paris and Lille. The Stephansberg antenna at Nordheim was inaugurated on 22 October 1965 by information minister Alain Peyrefitte. In 1979 the original 130-metre mast was replaced by a taller one, and in 2010 the mast gained five metres with the arrival of digital terrestrial television.

The mast carries the name of the hill it stands on, the Stephansberg, and locals know the site simply as the Strasbourg transmitter although it lies in Nordheim. Its FM history runs through successive station names: Radio Strasbourg PTT from 1930, then RDF, RTF, ORTF, FR3 and Radio France Alsace, France Bleu Alsace until 2025, and now Ici Alsace. Arte France and Alsace 20 air German-language programmes, so viewers across the Rhine can follow them.

The mast stands on the Stephansberg ridge in Nordheim, 21 km northwest of Strasbourg, and its signal reaches roughly 40 km around the city. The site is a working TDF broadcast facility and is not open to visitors. The lattice mast and the separate shorter pylon beside it can be seen from the surrounding fields and roads.

The mast stands on the Stephansberg, a hill in the Vosges folds, and reaches 280 metres, making it the tallest structure in Alsace. Its signals carry into Germany with little interference as far as the Rhine-Neckar region. Arte France and Alsace 20 broadcast some programmes in German, and Arte France usually offers a German audio channel alongside the French one.