Selchenbach is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Kuseldistrict in Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde of Kusel-Altenglan, whose seat is in Kusel.
Selchenbach is a linear village – by some definitions a thorpe – that lies at the Oster valley in the Western Palatinate, right on the boundary with the Saarland. Selchenbach lies at an elevation of 380 to 390 m above sea level on the upper reaches of the Selchenbach. The Selchenbach itself rises south of the municipal area near the Königreicher Hof, flows through the village of Selchenbach and then the village of Herchweiler to the north and then turns in a broad bow back south, emptying near Haupersweiler into the Oster. This puts Selchenbach within the Saar–Bliesdrainage basin, with the mountains east of the village marking the watershed between this and the Glan–Nahe drainage basin on the other side. The heights on either side of the valley rise to more than 400 m above sea level; the greatest elevation is the Eichelberg at 465 m above sea level. A major contiguous forested area stretches to the village’s north (the Schachenwald). The municipal area measures 479 ha, of which 100 ha is wooded.
Selchenbach borders in the northeast on the municipality of Albessen, in the southeast on the municipality of Langenbach, in the south and west on the town of Sankt Wendel and in the northwest on the municipality of Herchweiler. Selchenbach also meets the municipality of Konken at a single point in the northeast.
Selchenbach’s Ortsteile are Oberselchenbach and Unterselchenbach.
Selchenbach, which is made up of two centres called Oberselchenbach and Unterselchenbach, stretches for some one thousand metres mainly on the Selchenbach’s left bank and on both sides of Bundesstraße 420, which is held to be the village’s main street. A new building zone was opened up in the 1990s on Birkenweg. From the main street, several short sidestreets branch off. From south to north, these are Alte Hohl, Im Eck and Birkenweg (branching from each other after a short distance), Osterbrücker Weg and, somewhat longer, Siedlungsweg with the village community centre, the graveyard and the chapel. The pattern is broken somewhat in Unterselchenbach, where the old village street, Alte Straße (literally “Old Street”), owing to improvements made in 1938, was replaced with a bypass (today part of Bundesstraße 420). Here, the Selchenbach bows to the northwest, thus ending up on the other side of the street. Other streets in Unterselchenbach are Gartenstraße and Mühlweg. Despite the latter’s name, literally “Mill Way”, it has been a long time since any mill stood in this area.