1 Samuel 18 is the eighteenth chapter of the First Book of Samuel in the Old Testament of the Christian Bible or the first part of the Books of Samuel in the Hebrew Bible. According to Jewish tradition the book was attributed to the prophet Samuel, with additions by the prophets Gad and Nathan, but modern scholars view it as a composition of a number of independent texts of various ages from c. 630–540 BCE. This chapter contains David's interaction with Saul and his children, in particular Jonathan and Michal. This is within a section comprising 1 Samuel 16 to 2 Samuel 5 which records the rise of David as the king of Israel.