"Gambia" was returned to the Royal Navy at Portsmouth on 27 March 1946. She underwent a refit and was recommissioned on 1 July 1946 for the 5th Cruiser Squadron with the Far East Fleet. She returned to the UK on 6 January 1948, and in January 1950 she was assigned to the 2nd Cruiser Squadron in the Mediterranean, later serving with the 1st Cruiser Squadron on the same station until October 1954. In 1953, she and her sister brought aid to the Greek island of Zakynthos when it was struck by the Ionian earthquake. Greek officials would later comment, "we Greeks have a long-standing tradition with the Royal Navy and it lived up to every expectation in its infallible tradition of always being the first to help". In the same year she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II.