The aim of this study was to understand the possible influence of personality traits on the importance and significance of perception of body image and self-awareness of appearance in individuals. 214 online recruited subjects between the ages of 17 and 64 years answered to a socio-demographic questionnaire, the Portuguese version of the instruments NEO-FFI (NEO-Five Factor Inventory), ASI-R (The Appearance Schemas Inventory – Revised) and DAS-24 (Derriford Appearance Scale – short). It was found that age, Neuroticism and Agreeableness dimensions significantly influence an individual’s investment in body image and self-awareness of appearance. Sexual orientations differed with regard to Self-Evaluative Salience and Self-Consciousness of Appearance. The performed analysis showed that neuroticism and agreeableness are related to Self-Evaluative Salience and Self-Consciousness of Appearance.