A roper is someone who uses a rope skillfully, especially a cowboy or rancher who can throw a lasso to catch cattle or horses. When a roper spots a calf that needs medical attention, they swing a loop of rope over their head and release it at just the right moment so it sails through the air and drops around the animal's neck or legs. This takes years of practice: the roper must judge distance, timing, and the animal's movement all at once.

Roping became an essential ranching skill in the American West during the 1800s. Cowboys needed to control large herds of cattle on open rangeland, and roping was often the only way to catch an individual animal for branding, medical care, or moving it to a different pasture. A skilled roper could work from horseback, coordinating with their horse to chase down a running steer.

Today, roping continues as both a practical ranching skill and a competitive sport. In rodeos, ropers compete in events like calf roping and team roping, where they're judged on speed and accuracy. Some ropers can catch a running calf in just a few seconds. The word can also refer to people who perform rope tricks or work with ropes in other contexts, like sailors or circus performers, though the cowboy and ranching meaning remains most common.