Parker will appear in television and print ads, set to break in mid-February. It is the third season running that she has been the face of the US clothing label.
Details of the creative, which will be devised by Gap's retained agency Laird+Partners, have not been revealed. In her first television campaign, Parker was serenaded by Lenny Kravitz, while the press campaign showed ways people could customise Gap jeans.
In a Christmas campaign, Parker was shown celebrating Christmas with other celebrities, including Mary J Blige.
Jeff Jones, executive vice-president of Gap marketing, said: "We've had an amazing customer response to Sarah Jessica's iconic sense of individuality and style in our previous campaigns, and we're thrilled to team up with her again for our spring campaign."
While Gap has deemed the tie-up a success, ±±¾©Èü³µpk10 magazine named Parker's endorsement as the sixth-worst celebrity appearance in an ad campaign last year -- although she fared better than fellow 'Sex and the City' alumnus Kim Cattrall, whose cringe-worthy appearance in a spot for Tetley tea was named the third worst of the year.
Parker said of her new Gap deal: "I think Gap is terrifically creative and inspired. Women will love the clothes for spring."
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