Julien Le Roy (1686-1759) was a major 18th-century Parisian clockmaker and watchmaker. Born in Tours in 1686, by the age of 13, he had already made his first clock. In 1699, he moved to Paris further training. He became maitre horloger in 1713 and later juré of his guild. Further appointments followed, including the Directorship of the Société des Arts, but the pinnacle of his achievement was being appointed clockmaker (Horloger Ordinaire du Roi) toking Louis XV in 1739. He carried on his business from Rue du Harlay until his death in 1759. His son Pierre Le Roy carried on the business until the early 1780s. Another son, Julien-David Le Roy (1724–1803), was aNeo-Classical architect and archaeologist, author of the Ruins of the Most Beautiful Monuments of Greece. Examples of his work can be found in many major museums including the Louvre, Paris, and the Victoria and Albert Museum, London.