Cynthia Nixon and Christine Marinoni have tied the knot, three years after announcing they were to wed.
The couple got engaged at a rally to support same-sex marriage in New York – which wasn't legal at the time.
"On May 27, 2012, Cynthia Nixon and her girlfriend, Christine Marinoni, were legally married in the state of New York," her representative confirmed to People.
"Nixon wore a custom dress by Carolina Herrera."
No other details were immediately available.
The Sex and the City actress, 46, and the education activist, 45, have been together since 2004. Christine gave birth to their son, Max Ellington Nixon-Marinoni in February last year.
The actress also has two children from her previous relationship with photographer Danny Mozes.