Based on the Theory of Planned Behaviour (TPB), sexual intention is determined by three main socio-cognitive factors which are permissive attitudes, social-norms and self-efficacy in performing premarital sexual activity. Premarital sex associated with increased risk of sexually transmitted diseases and detrimental social implications. The aim of this study was to explore the correlation of the socio-cognitive factors in predicting intention to engage in premarital sex amongst late adolescents in Kuantan government secondary schools. Method: This cross-sectional study was conducted among 466 pre-university students aged 18-19 years from nine government secondary schools in Kuantan district. A self-administered validated Youth Sexual Intention Questionnaire (YSI-Q) was used. Statistical analyses were done using IBM SPSS version 22.0. Results: Permissive attitude (r=0.579, p