Baltimore Tower, also known as Arena Tower and nicknamed The Slinky due to its resemblance to the popular toy, is a high-rise residential skyscraper in Millwall on the Isle of Dogs, London, England.

The 45-storey building comprises 366 residential apartments and is 149 meters in height.

It was designed by American architecture firm Skidmore, Owings & Merrill.

Baltimore Tower won the Best Residential High Rise Award at the International Property Awards in 2017.

[5] Ballymore London Arena Ltd applied for an amended planning application to Tower Hamlets in 2008.