Oneal entered U.S. records in 1889, near the turn of the 20th century. Its popularity climbed over the following decades. In 1932, 63 babies received the name (ranked #810). Today it sits well outside the top 1,000 (around #9783), with roughly 8 babies named Oneal each year. Oneal's usage has held roughly steady recently. In total, around 3,173 babies have been registered with this name since 1880.