Grand Duo
Grand Duo may refer to
- Violin Sonata in A major, D 574 (Schubert)
 - Sonata in C major for piano four-hands, D 812 (Schubert)
 - Grand Duo concertant (Chopin and Franchomme), cello and piano
 - Gran Duo Concertante, two double basses and orchestra by Bottesini
 - Grand Duo Concertant (Weber), clarinet and piano