This study examined the long-standing question of whether a person’s position among siblings has a lasting impact on that person’s personality randomly. A total of 120 participants collected data is based on a questionnaire which was answered by the respondents. Thirty firstborns, thirty middle children, thirty lastborn, and thirty only children were recruited into this study by random sampling. The data analysis use a Spearman’s correlation test and Chi- Square test. Their personality was assessed by Myers-Briggs Type Indicator Personality Test (MBTI). Results indicated that the personality types are vary among the participants. Participants of different birth orders did not differ significantly in personality overall. However, Spearman’s correlation showed that birth order was correlated positively only with Sensing/Intuition personality with r = -0.221. It showed that the lower the order of birth, the more intuitive the person will be.