Esplanaden (English: The Esplanade) is a street in Copenhagen, Denmark. It extends eastwards from Store Kongensgade and runs along the south side of the city's 17th-century fortress Kastellet and Churchillparken until it reaches the waterfront at Nordre Toldbod, just south of Langelinie, passing Amaliegade, Bredgade and Grønningen on the way. It marks the northern border of the Frederiksstaden district.
It is best known as the address of the headquarters of A. P. Moller-Maersk, the largest shipping company in the world. In Danish media and daily usage, the street name is often used as a synonym for company's top management.
The street is located on Kastellet's former esplanade. Then known as Toldbodvej, literally "Custom House Road", was created as an access road to the Custom House, complementing Toldbodgade ("Custom House Street"), which came from the south along the water.
In the 1780s, a tree-lined avenue, which quickly became a popular venue for promenades, was established between the end of Bredgade and the harbourfront a little to the north of Toldbodvej. A total of 3,000 trees from Jægersborg Dyrehave were planted in the grounds. It was around the same time that the first town houses began to appear on the south side of Toldbodvej. The tree-lined promenade largely disappeatrdd with the construction of the Port Authority Building (1868 ), the Royal Nautical Charts Archive (1873), and later the Resistance Museum.