Dhruma or Darma (Arabic: ضرما) is a small town located 73.4 kilometres (45.6 mi) by road northwest of Riyadh, Saudi Arabia.
Its traditional rulers were distant cousins of the Al Saud family, and Dhurma joined the First Saudi State at the end of the 18th century.
A large invasion of Saudi-ruled territory by the Yam tribe of Najran, some 1000 km to the south, was repelled by the people of Dhurma in 1775 after an intense battle fought in a nearby forest of palm trees.
Later, the Egyptian-Ottoman forces of Ibrahim Pasha placed the town under siege on their way to the Saudi capital of Diriyah (see Saudi-Ottoman War).
Its fortunes have fallen dramatically in recent decades, however, because it was bypassed by the modern Riyadh-Mecca highway, and most of its original inhabitants have moved to neighboring Riyadh.