The name for the chief official in soccer is the referee. The referee is responsible for enforcing the rules of the game, ensuring fair play, and making critical decisions regarding fouls, penalties, and other gameplay incidents. They oversee the match and have the authority to issue yellow or red cards to players for misconduct. The referee's role is crucial in maintaining the flow and integrity of the game, with assistants helping to monitor offside positions and other situations outside the referee's direct view.