The Randwick Guineas is a Group One Thoroughbred horse race for three-year-olds, run at set weights over a distance of 1600 metres at Randwick Racecourse in Sydney, Australia. This race replaces the former Canterbury Guineas which was discontinued after the 2005 running. It is held in March as a part of the Sydney Autumn Carnival.
This race is part of the first leg of the Sydney 3yo 'Triple Crown' consisting of the Rosehill Guineas (2000m) and AJC Derby (2400m).