A series of bombings took place in Jakarta, Indonesia, on 17 July 2009. At around 07:47 until 07:57 WIB, the JW Marriott and Ritz-Carlton Hotels in Setiabudi, South Jakarta, were hit by two suicide bombers. The attacks were carried out five minutes apart. Seven people were killed, including three Australians, two Dutches, an Indonesian and a New Zealander. More than 50 people were injured in the blasts. Both blasts were caused by suicide bombers, who checked into the hotels as paying guests several days earlier. The twin suicide bombings came four years after the previous serious terrorist attack in Indonesia.

Jakarta, officially the Special Capital Region of Jakarta and formerly known as Batavia until 1949, is the nation's capital city and the centre of the largest metropolis of Indonesia. Lying on the northwest coast of Java, the world's most populous island, Jakarta is the largest metropole in Southeast Asia, and serves as the diplomatic capital of ASEAN. Jakarta is bordered by two provinces: West Java to the south and east; and Banten to the west. The Special Capital Region has a status equivalent to that of a province. Its coastline faces the Java Sea to the north, and it shares a maritime border with Lampung to the west. Jakarta's metropolitan area is ASEAN's second largest economy after Singapore.