A series of violent riots broke out in Ürümqi, the capital city of Xinjiang in China.

A series of violent riots over several days broke out on 5 July 2009 in Ürümqi, the capital city of the Xinjiang Uyghur Autonomous Region, in northwestern China. The first day's rioting, which involved at least 1,000 Uyghurs, began as a protest, but escalated into violent attacks that mainly targeted Han people. According to Chinese state media, a total of 197 people died, most of whom were Han people or non-Muslim minorities, with 1,721 others injured and many vehicles and buildings destroyed. Many Uyghurs disappeared during wide-scale police sweeps in the days following the riots; Human Rights Watch (HRW) documented 43 cases and said figures for real disappearances were likely to be much higher.

Ürümqi is the capital of the Xinjiang Uyghur Autonomous Region in Northwestern China. With a census population of 4 million in 2020, Ürümqi is the second-largest city in China's northwestern interior after Xi'an, also the second-largest in Central Asia in terms of population, right after Kabul, Afghanistan. Ürümqi has seen significant economic development since the 1990s and currently serves as a regional transport node and a cultural, political and commercial center.

Xinjiang, previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest of the country at the crossroads of Central Asia and East Asia. Being the largest province-level division of China by area and the 8th-largest country subdivision in the world, Xinjiang spans over 1.6 million square kilometres (620,000 sq mi) and has about 25 million inhabitants. Xinjiang borders the countries of Afghanistan, India, Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Russia, and Tajikistan. The rugged Karakoram, Kunlun and Tian Shan mountain ranges occupy much of Xinjiang's borders, as well as its western and southern regions. The Aksai Chin and Trans-Karakoram Tract regions are claimed by India but administered by China. Xinjiang also borders the Tibet Autonomous Region and the provinces of Gansu and Qinghai. The most well-known route of the historic Silk Road ran through the territory from the east to its northwestern border.