Sirwah (OSA: Ṣrwḥ, Ṣirwāḥ Ḫawlān) was, after Ma'rib, the most important economical and political center of the Kingdom of Saba at the beginning of the 1st century BC, on the Arabian Peninsula. Ṣirwāḥ was surrounded by a fortified wall. The city layout inside the oasis included a number of large buildings.