The Junglinster Longwave Transmitter is a longwave broadcasting facility used by RTL near Junglinster, Luxembourg, which went into service in 1932. Its aerial consists of three free-standing steel-framework towers, which are ground fed radiators. These towers formed a directional aerial for the frequency 234 kHz and until 1980 were 250 metres high. Since 1980 their height has been 215 metres.

Junglinster is a commune in central Luxembourg, which draws its name from its principal town, Junglinster. It is one of six communes in the Luxembourg canton of Grevenmacher. The 18th-century St Martin's church is a national monument.