Arabic: قلعة يحمور | |
 Chastel Rouge | |
  Shown within Syria | |
| Location | Syria |
|---|---|
| Region | Tartus Governorate |
| Coordinates | 34°48′44″N 35°58′14″E / 34.81222°N 35.97056°E |
Chastel Rouge, also called Qal’at Yahmur (Arabic: قلعة يحمور, Castle of Yahmur) is a small Crusader stronghold in the North West of Syria that belonged to the County of Tripoli. It is also identified as Castrum Rubrum mentioned in Latin texts. The castle stands in the village of Yahmur, at 12 kilometres' distance from Tartus and 10 kilometres from Safita, where the Tortosa and Chastel Blanc Crusader castles can be found.