| Image Coa: | Wappen von Kollweiler.png |
| Coordinates: | 49.5158°N 7.5844°W |
| Image Plan: | Kollweiler in KL.svg |
| State: | Rheinland-Pfalz |
| District: | Kaiserslautern |
| Verbandsgemeinde: | Weilerbach |
| Elevation: | 335 |
| Area: | 5.57 |
| Postal Code: | 66879 |
| Area Code: | 06385 |
| Licence: | KL |
| Gemeindeschlüssel: | 07 3 35 019 |
| Mayor: | Claudia Zahneißen[1] |
| Leader Term: | 2019 - 24 |
| Party: | SPD |
Kollweiler is a municipality in the district of Kaiserslautern, in Rhineland-Palatinate, western Germany.
Kollweiler lies in the Northern Pfalz. To the north are the towns of Jettenbach and Rothselberg, and to the south are the towns of Schwedelbach and Reichenbach-Steegen. The closest city is Kaiserslautern, located to the southeast.
Even before the Romans, Celtic descendants settled the area around Kollweiler.