Al-Yamamah is an ancient district lying to the east of the plateau of
Najd in modern-day
Saudi Arabia, or sometimes more specifically, the now-extinct ancient village of Jaww Al-Yamamah, near
Al-Kharj, after which the rest of the region was named. Only a handful of centralized states ever arose in Yamamah, but it figured prominently in early Islamic history due to it becoming a central theater in the
Ridda Wars immediately following
Muhammad's death. The region was gradually subsumed in recent centuries under the term "Najd", which encompasses a larger area. However, the term "Al-Yamamah" still lives on as a nostalgic historical term that is invoked to emphasize the region's ties with its ancient past. The current headquarters of the
Saudi government in
Riyadh, for example, is known as the Palace of Yamamah.