A skid loader, skid-steer loader, or skidsteer, or Bobcat is a small, rigid-frame, engine-powered machine with lift arms used to attach a wide variety of labor-saving tools or attachments.

Skid-steer loaders are typically four-wheel vehicles with the wheels mechanically locked in synchronization on each side, and where the left-side drive wheels can be driven independently of the right-side drive wheels. The wheels typically have no separate steering mechanism and hold a fixed straight alignment on the body of the machine.