Joseph-Hector Fiocco (20 January 1703 – 21 June 1741), a late Baroque composer and harpsichordist, was born in Brussels. Much of his musical education was provided by his father, the Italian composer Pietro Antonio Fiocco, and one of his older stepbrothers, Jean-Joseph Fiocco. He also mastered Greek and Latin to the point where he could teach both subjects in a school setting. Most sources date Joseph Hector Fiocco's work at the Ducal Chapel of the Notre-Dame du Sablon before 1730 when his stepbrother directed him. Joseph Hector was appointed sous-maitre (submaster) of the Notre-Dame du Sablon in 1730, but he left in 1731 to take the Sagmeister (choirmaster) at Antwerp Cathedral. He was in charge of the music in Antwerp (1731–37). Then, in 1737, he returned to his birthplace and worked in St. Michel and St. Gudule college church. He died at the age of 38 in Brussels.

Fiocco composed many choral pieces, including motets and Mass settings, while working at the cathedral. Lamentations du Jeudi Saint, a Missa solemnis, and Pièces de Clavecin are among his most important works. His two harpsichord suites, dedicated to the Duke of Arenberg, combine French and Italian influences. The first suite begins in Couperin's style and concludes with four movements in the Italian manner: Adagio, Allegro, Andante, and Vivace. His Allegro, part of the Suzuki violin repertoire Book Six, is also well-known among Suzuki violin students (and has been recorded by Itzhak Perlman). This tune has been arranged for string quartet and can be heard at weddings.