Terrorism in Indonesia refer to acts of terrorism that take place within Indonesia or attacks on Indonesian people or interests abroad. These acts of terrorism often target the government of the Republic of Indonesia or foreigners in Indonesia, most notably Western visitors, especially those from the United States and Australia.
In June 2015, Indonesia was taken off the Financial Action Task Force blacklist of 'Non-Cooperative Countries or Territories' (NCCTs) due to Indonesia no longer being non-cooperative in the global fight against money laundering and terrorist financing. That gives Indonesia the same status as other major economies in the G-20.
Traditionally militias politically opposed to Indonesian government interests have been held responsible for terrorism attacks in Indonesia. Separatist movements operating in Indonesia, such as the Darul Islam (Indonesia), Fretilin (East Timorese independence militia during the Indonesian occupation of East Timor), the Gerakan Aceh Merdeka, and the Organisasi Papua Merdeka were often held responsible for terrorist attacks, such as bombings and shootings, in Indonesia. Recent terrorism in Indonesia can in part be attributed to the al-Qaeda-affiliated Jemaah Islamiyah Islamist terror group and/or ISIL.
Since 2003, a number of 'western targets' have been attacked. Victims have included both foreigners — mainly Western tourists — as well as Indonesian civilians. Terrorism in Indonesia intensified in 2000 with the , followed by four more large attacks. The deadliest killed 202 people (including 164 international tourists) in the Bali resort town of Kuta in 2002. The attacks, and subsequent travel warnings issued by other countries, severely damaged Indonesia's tourism industry and foreign investment prospects. However, after the capture and killing of most of its key members and leaders, most notably Imam Samudra, Amrozi, Abu Dujana, Azahari Husin, and Noordin Top, the terrorist cells in Indonesia have grown more and more insignificant.