The purpose of this study is to investigate the level of psychological loneliness among Arab students studying at Irbid National University, and to investigate the effect of year of study and gender of students on the level of psychological loneliness. The sample of the study consisted of 149 students, 133 males and 16 females from first, second, third and fourth years. Means and standard deviations and T-tests were used to analyze the results. The results show that there are statistically significant differences in psychological loneliness among Arab students studying at Irbid National University. The results indicate that there are statistically significant differences at (alpha = 0.05) in the level of psychological loneliness among Arab students due to year of study variable but no statistically significant differences at (alpha = 0.05) in psychological loneliness among Arab students due to gender variable. (Contains 5 tables and 2 diagrams.)