Metro

De Blasio appoints Cynthia Nixon to advisory board

“Sex and the City” star Cynthia Nixon, a longtime supporter of Mayor Bill de Blasio, will serve on an advisory board for the Mayor’s Fund to Advance New York City.

The outspoken education advocate will join forces with de Blasio’s wife, Chirlane McCray, who oversees the nonprofit as unpaid chairwoman.

“Cynthia is one of our most knowledgeable and passionate ambassadors,” McCray said Thursday night at a Gracie Mansion gay pride event, where she announced the actress’ new volunteer role.

Nixon’s wife, Christine Marinoni, also works as a $120,000 special adviser for community partnerships at the Department of Education.

Both were early and avid supporters of de Blasio’s campaign for mayor.

“I don’t understand something about Cynthia Nixon. She could just go and do that acting thing all day — she’s very good at it, apparently — and you could never see her anyplace else and everyone would think that was normal,” de Blasio said at the same event. “But she insists on being an activist on a whole range of issues.”

Nixon’s celebrity status should be a boon to the fund — which seeks to raise private funding for partnerships on public programs dealing with education, health, the arts and other issues.

The nonprofit has collected donations for Superstorm Sandy relief and, more recently, for victims of the East Harlem explosion in March.

It raised $53 million overall in fiscal 2012.