The present study examined the impact of psychological adjustment on private university students’ academic achievement. The sample size consisted of 121 university students (42.1% male, and 57.9% female). The results indicated that only 15 % of the study participants showed high levels of psychological adjustment, and 34% of them showed low levels of psychological adjustment, while 51 % of the total sample recorded average levels of psychological adjustment. The findings also indicated relationship between psychological adjustment and students’ academic achievement at university in the way it has a significant positive impact on students’ academic achievement in private universities. The study concludes with recommending the application of tests that measure students’ psychological adjustment with the specialization in which they wish to continue their university study in before they are admitted in any academic specialization. © 2019, Sciedu Press. All rights reserved.