The paper presents data collected using measures of personality, Islamic religiosity, psychological well-being, unethical behavior, and dark triad traits. The sample consists 277 Bruneian Malay Muslim university students. The participants were sampled at a public university in Brunei. Through cooperation with faculty members, a link to the online questionnaire was posted on the learning management system platform. The targeted population was informed they were invited to participate voluntarily, and all information would be confidential. Completed questionnaires were submitted by 171 females (...) and 106 males. The age ranged between 18 and 30 years old (M = 19.62, SD = 1.65). This data article presented the demographic characteristics of participants, followed by descriptive statistics of the measures concerning primarily personality and Islamic religiosity, followed by brief measures of psychological nature specifically psychological well-being, unethical behavior, and dark triad traits. Reliability and correlation details of measures were also provided. The comprehensive data, as detailed out in this paper, has various potential for further research and analyses by researchers who are interested in the measures and data presented. (shrink)