The Paris Opera Ballet is a French ballet company that is an integral part of the Paris Opera. It is the oldest national ballet company, and many European and international ballet companies can trace their origins to it. It is still regarded as one of the four most prominent ballet companies in the world, together with the Bolshoi Ballet in Moscow, the Mariinsky Ballet in Saint Petersburg and the Royal Ballet in London.

The Paris Opera is the primary opera and ballet company of France. It was founded in 1669 by Louis XIV as the Académie d'Opéra, and shortly thereafter was placed under the leadership of Jean-Baptiste Lully and officially renamed the Académie Royale de Musique, but continued to be known more simply as the Opéra. Classical ballet as it is known today arose within the Paris Opera as the Paris Opera Ballet and has remained an integral and important part of the company. Currently called the Opéra national de Paris, it mainly produces operas at its modern 2,723-seat theatre Opéra Bastille which opened in 1989, and ballets and some classical operas at the older 1,979-seat Palais Garnier which opened in 1875. Small scale and contemporary works are also staged in the 500-seat Amphitheatre under the Opéra Bastille.