A snowmobile, also known as a motor sled, motor sledge, skimobile, snow scooter, Ski-Doo, or snowmachine, is a motorized vehicle designed for winter travel and recreation on snow.

It is designed to be operated on snow and ice and does not require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby.