This study discusses social interactions in the novel Merindu Baginda Nabi by Habiburrahman El Shirazy as an alternative teaching material in high schools. The purpose of this study is to describe the social interactions in the novel Merindu Baginda Nabi by Habiburrahman El Shirazy and determine the feasibility of the novel as an alternative open material in high schools. The method used in this study is a descriptive method with a qualitative approach. The results of the study indicate that there are social interactions in the novel Merindu Baginda Nabi, namely 1) verbal interaction, 2) physical interaction, and 3) emotional interaction. The novel describes social interactions that often occur in everyday life, such as interactions between friends, family, and couples. The novel Merindu Baginda Nabi by Habiburrahman El Shirazy has met three criteria for selecting teaching materials, namely linguistic aspects, psychological aspects, and cultural background aspects. Therefore, high school teachers can use the novel as an alternative open material for high school students, especially in the Java area.