This study is carried out to investigate the area of addressing terms between members in families in Vietnamese and English culture from major perspectives namely the common terms and the affecting factors on the choice of the terms. There are 200 people who are from different Vietnamese and English families take part in this study. A questionnaire and an interview are chosen as the data collection instruments. According to the results of the research, in Vietnamese the addressing terms used with the highest frequency in the mentioned relationship are “kinship term”. There are many factors affecting the choice of addressing terms such as: “personality”, “occasion” and “mood”. Additionally, “age gap” and “position” is also considered by the Vietnamese while the English pay attention to the “personality”, “occasion” and “mood”. After analyzing and synthesizing the statistics, the researcher discussed and recommended some implications along with suggestions for further research. Last but not least, it is much hoped to improve teaching language – not only in the field of addressing terms but also in any language field in general. Luận văn thạc sĩ ngôn ngữ Chuyên ngành Ngôn ngữ Anh Người hướng dẫn khoa học: TS. Nguyễn Thị Việt Nga Tác giả: Nguyễn Thùy Linh Số trang: 77 Kiểu file: PDF Ngôn ngữ: Tiếng Anh Học viện khoa học xã hội 2018 Link Download http://gass.edu.vn/SitePages/List_Thesis.aspx?itemId=16958https://drive.google.com/drive/folders/1yLBzZ1rSQoNjmWeJTM6cEZ3WGQHg04L1