A Los Angeles judge ended the 47-year-old actress and 48-year-old "Bloodline" producer's marriage Tuesday, more than three years after Messing filed for divorce.
Page Six reports the couple have yet to come to a custody and settlement agreement. The pair wed in 2000 and share 11-year-old son Roman Walker.
Messing and Zelman met as graduate students at New York University and separated after more than nine years of marriage.
The couple continued to live together in New York following their split.
"I am at peace with the journey we've had," Messing told Ladies Home Journal in 2012.
"I feel like the 20 years we had together has been a huge success. Despite the fact that everything is changing, I think everyone is thriving."
"The Mysteries of Laura" star went on to date "Smash" co-star Will Chase from 2011 to 2014. Sources told E! News the actress is single and focusing on her work instead of dating.
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"She is not dating anyone at the moment," an insider said. "[She is] just really focusing on her show and hoping it gets renewed."
Messing is best known for playing Grace Adler on "Will & Grace" and has since portrayed Molly Kagan on "The Starter Wife" and Julia Houston on "Smash." She plays Det. Laura Diamond on "The Mysteries of Laura," which aired its Season 2 finale Wednesday.
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