This study investigates the psychometric properties of a personality questionnaire developed for university lecturers in Malaysia, assessing the Big Five personality traits: extraversion, conscientiousness, agreeableness, neuroticism, and openness to experience. A sample of 30 lecturers from Universiti Teknologi MARA (UiTM) and Universiti Malaysia Sarawak (UNIMAS) was examined, with the questionnaire showing strong internal consistency, reflected in a Cronbach’s Alpha of 0.959. Demographic variables, including gender, age, marital status, and academic qualifications, were analyzed to provide further context for the findings. The results validate the questionnaire as an effective tool for assessing personality traits among Malaysian academics, offering valuable insights into how these traits may influence teaching effectiveness and professional behavior. This study contributes to the development of tailored psychometric tools in the Malaysian academic context and provides a foundation for further research into personality and its role in higher education.