The field of psychology of language learning aims to enhance language learning by investigating the unique characteristics of individual learners. This study focused on exploring the interplay between personality types, learning styles, and language learning strategies among individuals learning Persian as a second language (PSLLs). A sample of 94 PSLLs was selected at random from the Persian Language Teaching Center at the International University in Qazvin to fulfill the study’s objectives. The participants’ personality types were determined using the Myers-Briggs Type Indicator (Briggs-Myers & Briggs, 1985), while their learning styles were assessed through Kolb’s Learning Styles Inventory (1984). Furthermore, their language learning strategies were identified using Oxford’s Strategy Inventory for Language Learning (1990). The results of the study indicated a significant correlation between personality types and learning styles among PSLLs. However, no significant relationship was found between learning styles and language learning strategies. Moreover, the study revealed that extraverted individuals tended to employ metacognitive strategies more frequently than introverted individuals. The predominant learning style observed among PSLLs was assimilating, with cognitive and metacognitive strategies being the most commonly utilized language learning strategies. Understanding and recognizing learners’ inclinations towards specific styles or strategies could assist developers in creating materials that align with learners’ preferences, thereby facilitating the effective application of learning strategies.