Dubuisson (fl.1666-c.1685) is the sole French viol player-composer between Nicolas Hotman (1613-1663) and Le Sieur de Sainte-Colombe (d.c.1700) whose works are extant. His four suites from a Library of Congress manuscript (1666) are the oldest dated French music for the bass viol; his approximately 125 pieces are contained in five manuscript sources. This thesis brings together, for the first time, all the music from the five sources for study and analysis. Together with the few biographical details, this material is used to assess his position within the French viol school. Brief histories of the viol and the suite in France precede a discussion of Dubuisson's contributions to the evolution of the genre.