Hardy Cove is the 950 m wide cove indenting for 1.37 km the east coast of Greenwich Island in the South Shetland Islands, Antarctica and surmounted by Parchevich Ridge to the north and Ilarion Ridge to the south. The cove was known to the early 19th century sealers.
The cove is named after Admiral Sir Thomas Hardy, (1769–1839), Flag Captain in HMS Victory at the Battle of Trafalgar and First Sea Lord in 1830-34; the name was originally applied by Captain Robert Fildes to nearby Sartorius Point.