This study investigates the relationship between Personality dimensions (neuroticism, extraversion, openness, agreeableness and conscientiousness) and Brand Commitment and Compulsive Buying Behaviour among University Students and Higher School Students. There were two groups university students and higher school students. Total 120 sample size has been taken out of which 60 students of university (30 male and 30 female) and 60 higher school students (30 male and 30 female).