A choreographer is a person who designs and arranges dance sequences and movements for performances. They create and coordinate the steps, patterns, and timing of dances, working with dancers, performers, or actors to bring artistic or thematic concepts to life through movement. Choreographers often collaborate with directors, musicians, or event organizers to ensure the choreography aligns with the overall vision of a production, whether it's for films, theater, music videos, live events, or dance competitions.