Snow thrower, also known as a snow blower, is a machine used to remove snow from outdoor surfaces such as driveways, sidewalks, and roads. It works by taking in snow through an intake and then using an impeller to throw the snow out through a discharge chute.

Snow thrower is typically powered by either gasoline engines or electric motors. It comes in various sizes and types, including single-stage, two-stage, and three-stage models. Some snow throwers are also self-propelled, making it easier to maneuver and clear large amounts of snow.