This study investigated the effects of the Big Five personality traits on academic success as measured by the final grade and study satisfaction of college and university students in early childhood education in Germany. As expected, students with higher conscientiousness also had better college and university GPAs. The findings indicated that conscientiousness corresponded with better GPAs for college and university students in early childhood education. Furthermore, school-leaving GPA was quite a good predictor of college and university GPA in this study of early childhood education. In addition, higher conscientiousness was associated with higher study satisfaction but only for college students.