Amurri, 29, announced in February that she and the soccer commentator, 33, were expecting a baby together, reported Us magazine.
"Actress Eva Amurri Martino gave birth to a healthy baby girl, Marlowe Mae Martino, weighing 6lbs 11oz, over the weekend," the rep says in a statement.
"Both she and her husband, NBC sports analyst, Kyle Martino, are thrilled and enjoying the new addition to their family," the rep added.