A travel control device includes a side obstacle detection unit, a rearward movement preparation detection unit, a warning unit, and a suppression unit. The side obstacle detection unit divides a range from a lateral side to a rear side of a vehicle into plural detection angle areas, and detects, for each of the plural detection angle areas, an obstacle entering the detection angle area and a distance to the obstacle. The warning unit provides warning about the obstacle. The suppression unit suppresses the warning by the warning unit, if the rearward movement preparation detection unit detects the vehicle preparing to move rearward and the detection angle area in which the obstacle is detected shifts from the rear side to the lateral side.