Innocenzo Spinazzi (1726–1798) was an Italian sculptor active in Florence during the later eighteenth century. He is best known for allegorical and decorative sculpture executed in a refined Neoclassical style, marking the transition from late Baroque expressiveness to a more controlled classical idiom.

Spinazzi trained within the Florentine tradition and developed a sculptural language characterised by clarity of form, balanced composition, and restrained movement. His figures typically favour idealised anatomy and measured gesture over dramatic effect, aligning his work with the academic Neoclassicism that came to dominate European sculpture in the second half of the eighteenth century.

He worked extensively on large architectural and decorative programmes, contributing allegorical figures and sculptural ensembles intended to integrate harmoniously with architectural settings. Spinazzi’s role in such projects reflects the continued importance of collaborative practice, with sculptors supplying figures within an overarching designed scheme.

Spinazzi’s work occupies a significant position in Florentine sculpture of the period, bridging the Baroque tradition represented by artists such as Foggini and the fully developed Neoclassicism of the late eighteenth century.