The Bajoran rattle was a small percussive musical instrument that played a role during Bajoran births.

For Bajoran women, it was important to be relaxed during birth, so her relatives played different instruments in a repeating rhythm to provide a relaxed atmosphere.

During Kirayoshi O'Brien's birth in 2373, his mother Keiko O'Brien played a Bajoran rattle. (DS9: "The Begotten")