Place Stanislas is a large public square in the city of Nancy, located in the northeastern part of France. The square was built in the 18th century and is considered one of the most beautiful and harmonious examples of 18th-century European architecture. It was named after Stanislas Leszczyński, the former king of Poland and father-in-law of Louis XV of France, who commissioned the square's construction.

Place Stanislas is lined with grand neoclassical buildings, including the Hôtel de Ville (town hall) and the Opéra national de Lorraine. At the center of the square is a large statue of Stanislas, surrounded by fountains, decorative gates, and ornate street lamps. The square is a popular gathering place for locals and tourists alike, and is often the site of cultural events and festivals, particularly during the summer months. In 1983, Place Stanislas was designated a UNESCO World Heritage Site, along with the neighboring Place de la Carrière and Place d'Alliance.