Joseph Abaco (full name Joseph (Giuseppe) Marie Clément Ferdinand dall'Abaco) (27 March 1710 – 31 August 1805) was an Italian violoncellist and composer. He was born and baptised in Brussels, the capital of the Spanish Netherlands, on 27 March 1710, and was musically trained by his father, Evaristo Felice dall'Abaco. Abaco wrote nearly 40 cello sonatas, the 11 Capricci for Violoncello Solo, and other works. Many of his compositions were written in an old-fashioned, Baroque style, despite himself living a very long life well into the Classical era.