| Type: | Stadt |
| Friedrichsthal | |
| Image Coa: | DEU Friedrichsthal COA.svg |
| Coordinates: | 49.3256°N 7.0961°W |
| Image Plan: | Friedrichsthal in SB.svg |
| State: | Saarland |
| District: | Saarbrücken |
| Elevation: | 300 |
| Area: | 9.07 |
| Postal Code: | 66293–66299 |
| Area Code: | 06897 |
| Licence: | SB |
| Gemeindeschlüssel: | 10 0 41 511 |
| Divisions: | 3 |
| Mayor: | Christian Jung[1] |
| Leader Term: | 2020 - 30 |
| Party: | SPD |
Friedrichsthal is a town and a municipality in the district of Saarbrücken, of Saarland, Germany. It is situated approximately 13 km northeast of Saarbrücken.
Friedrichsthal (Saar) station is located on the Bingen (Rhein)–Saarbrücken railway.
In 1723 the place was founded with a glass foundry by Frederick Louis, Count of Nassau-Ottweiler.