The aim of the study is to investigate university students' fearing future terrorism: Perceived personal, national, regional and international threats of terrorism. It aims to examine gender differences in fear of terrorism. Moreover it examines the determinants of fear of terrorism. A sample of 188 students (Mutah University, Jordan) was randomly selected. A questionnaire was developed based on the existing scales. A construct validity of the scale was estimated by the calculating the correlation between a Terrorism Catastrophizing Scale and the current Fear of Terrorism Scale and found a positive significant relationship (0.564, α = 0.000), a sign of strong validity of the scales. The Reliability of the scales is strong and was estimated by Cronbach's alpha at 0.889. In addition to other findings, the research revealed that 42% of students were concerned that they personally, a friend or a relative might be the victim of a future terrorist attack in Jordan.