Terrorism-related killings refer to fatalities resulting directly from acts of violence perpetrated by individuals or groups with ideological, religious, or political motivations, intended to instil fear in civilian populations or coerce governments. These fatalities are typically categorised by victim type: civilians (ordinary citizens not involved in security operations), security forces (military, police, and other law enforcement personnel), and terrorists/insurgents/extremists (individuals identified as perpetrators who may be killed during attacks or counterterrorism operations). Unlike conventional warfare casualties, terrorism-related deaths often involve deliberate targeting of non-combatants, symbolic locations, or public spaces to maximise psychological impact beyond the immediate victims. The documentation of these fatalities serves multiple purposes: evaluating the severity of terrorist threats, identifying patterns and trends, formulating appropriate security responses, and tracking the effectiveness of counterterrorism measures. The classification of deaths as terrorism-related involves complex considerations about perpetrator motivations, tactics employed, and targeting patterns, with definitions sometimes varying across jurisdictions, which can affect how incidents are categorised and counted in official statistics.