This study examines the impact of terrorism on economic growth in Nigeria. Time series data for Nigeria spanning from 1999–2022 were used on ordinary least squares and quantile analysis techniques. The results obtained show that terrorism negates economic growth in Nigeria both within the mean and outside the mean of the data. The study recommends that while taking military action against terrorist activities, policymakers should allocate some budgetary funds for socio-economic development in the affected areas to remove the root causes of terrorism such as poverty, illiteracy, income inequality, unemployment, and injustice