Hasselbeck and her husband, NFL quarterback Tim Hasselbeck, announced the birth of their daughter, who weighed 7 pounds, 8 ounces, in a New York hospital Wednesday. The baby shares the same birthday as her father, ABC said.
She is the couple's first child.
"Both Elisabeth and I are extremely excited and we're so happy that everyone is healthy," Hasselbeck said in a statement.
Hasselbeck, who will be on maternity leave for about six weeks, will reveal the baby's name during a phone call Thursday to her co-hosts on the daytime chat fest.
She is a former contestant of "Survivor: The Australian Outback."