The actress, best known for playing feisty Samantha Jones in the racy franchise, will be handed the Golden Gate Award at the Gay and Lesbian Alliance Against Defamation ceremony in San Francisco, California.
Recipients are picked for doing work which increases 'the understanding and visibility' of the lesbian, gay, bisexual and transgender community.
"Kim Cattrall has not only grown acceptance of our community through story lines on shows like Sex and the City but used her platform to speak out for equality. We are proud to honour such a talented and passionate advocate," the Daily Express quoted GLAAD president Jarrett Barrios as saying.
The prize giving, hosted by Glee star Naya Rivera, will be held at the San Francisco Marriot Marquis on 14 May.
