Noun phrases (NP) might be very significant in any languages since it isconsidered as a basic component to form a meaningful sentence. However, most languagecan be different to each other in using noun phrases despite sharing a similar structure. Inthe process of learning and teaching English, it is important and essential to have deepunderstandings about the similarities and differences between English and Vietnamese NPto minimize mistakes. This study aims to investigate English and Vietnamese noun phrasesin terms of semantic- syntactic structure. Through it, it is expected that teachers partly helplearners of English to identify the errors that they make in learning English and then avoidmaking errors. The paper also suggests some teaching implications based on what havebeen discussed.