Call it a real-life "Born" identity – for a fourth time.
The baby girl, Stella Zavala Damon, was born on Wednesday in New York.
"Mom and baby are both healthy. The whole family is thrilled," Matt's rep told People.
Matt, 40, and Luciana, 35, — who tied the knot in 2005 — announced they were expecting back in April.
Stella joins sisters Isabella, 4, and Gia, 2, both of whom the couple had together. Luciana also has an 11-year-old daughter, Alexia, from a previous marriage.
Back in April, Matt told Parade magazine that fatherhood has helped him avoid some of Hollywood's pitfalls.
"It's pretty easy to kind of lose your way. I think working consistently with great people is really helpful. Also having kids is really helpful. They kind of disabuse you of the notion of your greatness pretty quickly," he told the mag at the time. "There's a routine that you get into with kids that precludes you from going back to your single days. I'm probably more boring than I used to be. I go to bed earlier and I get up earlier."
Matt currently stars in the supernatural drama "Hereafter," which opened on Friday with a .1 million box office take.
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