Julius LeBlanc Stewart (September 6, 1855, Philadelphia, Pennsylvania - January 5, 1919, Paris, France), was an American artist who spent his career in Paris.
A contemporary of fellow expatriate painter John Singer Sargent, Stewart was nicknamed "the Parisian from Philadelphia".
His father, the sugar millionaire William Hood Stewart, moved the family from Philadelphia, Pennsylvania to Paris in 1865, and became a distinguished art collector and an early patron of Marià Fortuny and the Barbizon artists.