The 40-year-old welcomed her second child with husband Noah Lebenzon on Saturday, according to Latina Magazine.
The new arrival weighed in at seven pounds and seven ounces and was named Rafael by the couple.
Ortiz commented on the thought process behind their son's name upon the announcement of her pregnancy in May.
"[We] are trying to come up with some names that we can agree on," she said. "It has to be Spanish, but something non-speakers can pronounce without mauling. Suggestions? I'm open."
Ortiz and Lebenzon are already parents to a 2-year-old daughter named Paloma Louise. The pair married in Puerto Rico back in 2007.
Ortiz recently made a guest appearance in the third season of HBO comedy-drama Hung.