Lancaster Gate is a mid-nineteenth century development in the Bayswater district of west central London, immediately to the north of Kensington Gardens. It comprises of a couple of streets and a small number of terraces of grand stuccoed houses in the Italianate style.

For many years the headquarters of The Football Association were located in Lancaster Gate and the term was often used to refer to the organisation, but it has now relocated to Soho Square. Many of the properties are still in residential use and command very high prices. Others are used as embassies, offices, or hotels.

The name Lancaster Gate also refers to the nearby gate of Hyde Park.