This article provides a comparative analysis of the Azerbaijani and English phonetic systems, focusing on key differences and similarities between the two languages. The study examines the vowel and consonant systems, as well as intonation and stress patterns, to highlight the challenges faced by Azerbaijani speakers learning English and English speakers learning Azerbaijani. Through phonetic data collection and analysis, common pronunciation errors and their impact on language acquisition are identified. The findings offer insights into how these phonetic differences influence second language learning and propose strategies for mitigating phonetic interference through targeted teaching methods and pronunciation exercises.