 Palmer Street, looking north | |
 Map of Palmer Street (centre, vertically) | |
| Former name(s) | Palmer's Passage (lower) & Gardner's Lane (upper) |
|---|---|
| Area | St. James's |
| Location | City of Westminster |
| Postal code | London SW1H |
| Coordinates | 51°29′57″N 0°08′07″W / 51.4991°N 0.1354°W |
| Other | |
| Known for | Former offices of GCHQ |
Palmer Street is a street in the City of Westminster in London that runs between Petty France in the north and Victoria Street in the south. It is crossed by Caxton Street and Butler Place. The lower half of Palmer Street, below Caxton Street, is pedestrianised.
The street is named after the priest and philanthropist James Palmer whose almshouses stood on the east side from 1654 to 1881. In the 19th century the lower part was known as Palmer's Passage and the upper part as Gardner's Lane. From 1953 to 2019, the street was the location of the London offices of the British Government Communications Headquarters (GCHQ).