The focus of this research is the experimental investigation of coarticulatory vowel nasalization in different syllabic contexts in Modern Greek. Greek serves as a detailed case study for exploring the hypothesis that the extent of vowel nasalization in a language is linked to that language's tendency for open or closed syllable structure. The study consists of three parts: an overview of the phonetic and phonological facts of Modern Greek with an emphasis on the behavior of nasal consonants and the syllable structure of the language, an acoustic analysis of coarticulatory vowel nasalization in Modern Greek, and an assessment of the existing experimental literature on vowel nasalization in other languages. Although more detailed experimental studies are necessary for a comprehensive evaluation of the above stated hypothesis, the findings from this work suggest that investigation of the prosodic organization of languages may prove fruitful in determining the factors that lead to cross-language coarticulatory differences regarding vowel nasalization.