INS Delhi was a Leander-class light cruiser built for the Royal Navy in 1933 as HMS Achilles, and commissioned into the New Zealand Division of the Royal Navy in 1937 as HMNZS Achilles. She was returned to the Royal Navy at the end of the Second World War and in 1948 was sold to the Royal Indian Navy to be recommissioned as HMIS Delhi. In 1950 she was renamed INS Delhi and remained in service until decommissioned at Bombay on 30 June 1978.

The Leander class was a class of eight light cruisers built for the Royal Navy in the early 1930s that saw service in World War II. They were named after mythological figures, and all ships were commissioned between 1933 and 1936. The three ships of the second group were sold to the Royal Australian Navy (RAN) before World War II and renamed after Australian cities.