This is a timeline of incidents in 2004 that have been labelled as "terrorism" and are not believed to have been carried out by a government or its forces (see state terrorism and state-sponsored terrorism).
Total incidents: 3 Total incidents: 4 Total incidents: 8 Total incidents: 1 Total incidents: 4 Total incidents: 5 Total incidents: 3 Total incidents: 8 Total incidents: 4 Total incidents: 3 Total incidents: 2 Total incidents: 3