Miso soup is a traditional Japanese soup consisting of a dashi stock into which softened miso paste is mixed. In addition, there are many optional ingredients that may be added depending on regional and seasonal recipes, and personal preference. In Japanese food culture, miso soup is a representative of soup dishes served with rice. Miso soup is also called omiotsuke (御味御付).

Japanese cuisine encompasses the regional and traditional foods of Japan, which have developed through centuries of political, economic, and social changes. The traditional cuisine of Japan is based on rice with miso soup and other dishes with an emphasis on seasonal ingredients. Side dishes often consist of fish, pickled vegetables, and vegetables cooked in broth. Common seafood is often grilled, but it is also sometimes served raw as sashimi or as sushi. Seafood and vegetables are also deep-fried in a light batter, as tempura. Apart from rice, a staple includes noodles, such as soba and udon. Japan also has many simmered dishes, such as fish products in broth called oden, or beef in sukiyaki and nikujaga.