Pamplona Runners are a group of people who participate in the annual Running of the Bulls event in Pamplona, Spain. The event involves running in front of a group of bulls that have been let loose on a course through the city streets. The bulls are typically accompanied by people called Toros, who help to control the bulls and ensure the safety of the runners. The term for these participants is Pamplona Runners, and the two words used to describe them are Bulls and Toros.