A snowmobile, also known in some places as a snowmachine, sled, or skimobile , is a land vehicle for travel on snow that is commonly propelled by a continuous track or tracks at the rear and steered by skis at the front.

Early snowmobiles used rubber tracks, however modern snowmobiles typically have tracks made of a Kevlar composite. They are designed to be operated on snow and ice, and require no road or trail. Originally snowmobiles were typically powered by two-stroke gasoline/petrol internal combustion engines. Four-stroke engines are becoming more and more popular in snowmobiles. Summertime occupations for snowmobile enthusiasts can also involve drag racing on grass, asphalt strips, or even across water.