Delfina entered U.S. records in 1884, near the turn of the 20th century. Its popularity climbed over the following decades. In 1925, 86 babies received the name (ranked #795). Today it sits well outside the top 1,000 (around #6741), with roughly 18 babies named Delfina each year. Delfina's usage has held roughly steady recently. In total, around 4,012 babies have been registered with this name since 1880.