A reflux board is a device prescribed for use in children who have gastroesophageal reflux. It is a board used to tilt the child upward, while he is lying in bed to prevent or reduce gastroesophageal reflux.

A reflux board is used to elevate the child's head and shoulders above his abdomen. It is useful in using gravity to reduce episodes of gastroesophageal reflux, in which stomach contents flow out of the stomach, back into the esophagus and mouth, and possibly into the lungs. Recent advances in both medical treatment and less invasive surgeries using scopes have largely replaced the use of reflux boards.