The objective of this study was to examine the relationship between personality types and rnoccupational stress of teachers in private higher education institutions of Addis Ababa. The rnstudy employed correlational research design and the lottery method was used to select 154rnparticipants. Two instruments were used which were Big Five Inventory (BFI) and Teachers rnOccupational Stress Scale (TOSS). To analyze the collected data, both descriptive and rninferential statistics were applied. The findings of the study revealed that 30.3% of the rnteachers experienced a low level of stress, 42.8% experienced moderate levels of stress, and rn26.9% experienced high levels of occupational stress. Female teachers score significantly rnhigher occupational stress (M=57.74, SD=11.24) as compared to the males (M=47.76, SD= rn5.24) and the t-test yielded a statistically significant difference between the mean scores of rnmale and female teachers on the overall occupational stress scale (t=-4.491, df=143, rnP=.000, α=0.05). The result also indicated that there is a significant negative correlation rnbetween occupational stress and conscientiousness (r=-0.442, p