| Thalhausen | |
| Image Coa: | DEU Thalhausen COA.svg |
| Coordinates: | 50.5031°N 7.5861°W |
| Image Plan: | Thalhausen in NR.svg |
| State: | Rheinland-Pfalz |
| District: | Neuwied |
| Verbandsgemeinde: | Rengsdorf-Waldbreitbach |
| Elevation: | 280 |
| Area: | 3.66 |
| Postal Code: | 56584 |
| Area Code: | 02639 |
| Licence: | NR |
| Gemeindeschlüssel: | 07 1 38 072 |
| Website: | www.Thalhausen.de |
| Mayor: | Rolf Kurz[1] |
| Leader Term: | 2019 - 24 |
| Bürgermeistertitel: | Ortsbürgermeister |
Thalhausen is a municipality in the district of Neuwied, in Rhineland-Palatinate, Germany.