The Sinfonia Concertante in B♭ major (Hob. I/105), by Joseph Haydn was composed in London between February and March 1792. The work is a sinfonia concertante with four instruments in the solo group: violin, cello, oboe and bassoon. It is believed to be a response to similar works composed by Ignaz Pleyel, a former student of Haydn's who London newspapers were promoting as a 'rival' to Haydn.

Date of composition 1792 (between February and March 1792) in London, United Kingdom
Premiered 1792, March 9th
Type Concerto
Tonality B-flat Major
Catalogue Hob. I:105
Instruments Violin
Cello
Oboe
Bassoon
Autotranslations beta Joseph Haydn: Sinfonia Concertante en si bémol majeur, Hob. I:105
Franz Joseph Haydn: Sinfonia Concertante in si bemolle maggiore, Hob. I:105
Joseph Haydn: Sinfonia Concertante B-dur, Hob. I:105