The Flag of Pinneberg, Germany, is a heraldic banner that represents the city of Pinneberg, located in the federal state of Schleswig-Holstein. It was officially adopted on October 27, 1953. The flag consists of five equal horizontal stripes in alternating colors: red, white, blue, white, and red from top to bottom. This design mirrors the coat of arms of Pinneberg, which features a red shield divided diagonally by a white St. Andrew's cross, with four blue towers at each quarter. The flag symbolizes the city's rich history, particularly its ties to the House of Schauenburg and Holstein.