The purpose of this study is to investigate how Korean and English speakers syllabify two-syllable English words with single intervocalic consonants in written and listening tasks. Through analyses of Korean and English speakers, I tried to identify whether their syllabification was affected by phonological factors of stress position, vowel length, and consonant type. For this, I classified responses of both subjects into response 1(e.g., col/or), response 2(e.g., co/lor), and response 1-2(e.g., co-l-or). In written tasks, both English and Korean speakers mostly tended to put intervocalic consonants in the second stressed syllable, which follows the Maximal Onset Principle. But, while English speakers were generally influenced by consonant type, vowel length, and stress, Koreans were affected only by consonant type, especially nasals and obstruents, regardless of stress position or vowel length. In listening tasks, responses of 1 and 2 in both speakers showed almost identical patterns witnessed in those of the written tasks. However, in response 1-2, English speakers were affected by vowel length and stress position, but Koreans were strongly influenced by consonant type, that is, liquids, which reflected the influence of the syllable structure of their native language.