Luke J. Lang Square, Garden square in Queens, United States

Luke J. Lang Square is a public green space in Queens featuring paved walking paths, seating areas, and varied plantings. The space is organized around trees, shrubs, and seasonal flower beds that are maintained throughout the year.

The land belonged to Alden Sampson & Son until New York City confiscated it in 1916. In April 1933 the plot was named for Luke J. Lang, a printer from nearby Ridgewood who volunteered in June 1917 and died in 1918. In 1935–1936 the surrounding sidewalk was paved with bluish sandstone and hexagonal blocks, and a flagpole, benches and three Norway maples were added.

The square carries the name of Luke Lang, a printer from nearby Ridgewood's Bleecker Street who volunteered in June 1917 and died in 1918; the site was named for him in April 1933. Three Norway maples were planted and a flagpole raised, and today the plot is mostly a hedge. It is one of New York's smallest parks, alongside Sergeant Joyce Kilmer Triangle.

At roughly 4 m², the square is a triangular traffic island in Masbeth, Queens, at the coordinates 40.71858, -73.90240, so it is passed on foot rather than entered. Its sidewalk was paved in 1935–1936 with bluish sandstone and hexagonal setts. Look for the flagpole and benches installed at that time.

At about 4 square metres, Luke J. Lang Square rivals the Sergeant Joyce Kilmer Triangle as the smallest park in New York City. Its 1935–36 paving of bluish sandstone and hexagonal blocks, plus three Norway maples, was recorded in city accounts; today a hedge dominates the plot.