The BT Tower is a grade II listed communications tower in Fitzrovia, London, England, owned by BT Group. It was also known as the GPO Tower and the Post Office Tower. It was later officially renamed the Telecom Tower. The main structure is 581 feet (177 m) high, with a further section of aerial rigging bringing the total height to 620 feet (189 m).

Upon completion in 1964, it overtook the Millbank Tower as the tallest structure in London until 1980, when it was overtaken by the NatWest Tower. It was opened in 1965 by Prime Minister Harold Wilson. A 360° colored LED screen near the top of the tower displays news across central London.

In February 2024, BT Group announced the sale of the tower to MCR Hotels, who plan to turn it into a hotel. BT will retain ownership for a few years until the tower has been vacated.

Thanks to Google Earth Studio for this amazing aerial view.