Stephansplatz (Stephan Square) is a square in Neustadt quarter, Hamburg, Germany. It is located at the junction of the streets of Dammtordamm, Esplanade, Dammtorstraße, and Gorch-Fock-Wall, south of Dammtor area and Dammtor station. The square is named after German Empire post director Heinrich von Stephan, who is known for his role in the founding of the Universal Postal Union. The square and a small part of the streets of Dammtordamm and Dammtorstraße had been renamed in the course of the inauguration of the historical building of Alte Oberpostdirektion (Old Hamburg Post Office Administration) at the square.