The paper is about the children’s musical heritage of Slavonia and Syrmia. It focuses on children's songs that grandparents used to sing to their grandchildren, dances, and counting songs. Heritage is a part of history of every nation; it contains values and elements that each nation preserves and uses to highlight their identity. Children’s customs can also be listed under children’s heritage, and some of them are mentioned in the paper. The most prominent ones are the annual customs, in which the children most often participated. Children’s musical heritage includes not only songs and singing games, but also dancing, which is most often preserved by cultural-artistic societies. Children’s folklore preserved within cultural-artistic societies includes songs, games, and dances. By participating in such activities, children get to know the customs of their region that have been passed down through generations, which makes sure that music is a part of their lives since early childhood. Children use songs and games to remember things more easily and learn faster. Using different musical content encourages the development of children’s creativity, their abilities, and love for music. These days, music and customs of a certain region can be seen at various festivals and folk dance ensemble concerts. But the paper touches upon most often performed children’s folklore heritage. Those are: children’s songs, games, customs, counting songs, and traditional dances.