|Full name||Nicola Clare Jackson|
|National team||Great Britain|
|Born||19 February 1984|
|Height||1.75 m (5 ft 9 in)|
|Weight||52 kg (115 lb; 8.2 st)|
Nicola Clare Jackson (born 19 February 1984) is a British former competitive swimmer who won two world championships in relay events.
In 1999, Jackson won a silver medal at the World Short Course Championships in the 4×200-metre freestyle relay. The next year, at the 2000 FINA World Swimming Championships (25 m), she won a bronze medal in the 50-metre butterfly, and a gold medal as part of Great Britain's world-record-breaking 4×200-metre freestyle relay team. Jackson swam in the 2000 Summer Olympics in Sydney, as a member of Great Britain's 4×200-metre freestyle relay team, which finished in sixth place. In 2001, she won her only international medal in a long course championship, in the 4×200-metre freestyle relay at the 2001 World Aquatics Championships.
She is the sister of British swimmer Joanne Jackson.