Kirschweiler is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Birkenfeld district in Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde Herrstein-Rhaunen, whose seat is in Herrstein.

The municipality lies a few kilometres northwest of Idar-Oberstein in the Hunsrück. The municipal area is 56% wooded.

Kirschweiler's neighbours besides Idar-Oberstein are Hettenrodt and Kempfeld with its outlying centre of Katzenloch.

Also belonging to Kirschweiler are the outlying homesteads of Auf der Lüh und Kirschweiler Mühle.

In 1272, Kirschweiler had its first documentary mention.

The council is made up of 16 council members, who were elected by majority vote at the municipal election held on 7 June 2009, and the honorary mayor as chairman.

Kirschweiler's mayor is Karl-Otto Dreher.

The municipality's arms might in English heraldic language be described thus: Per bend azure a diamond with one row of brilliants and Or a lion rampant gules armed and langued of the first.