Phong first appears in the U.S. registration record in 1975. Its popularity climbed over the following decades. In 1984, 51 babies received the name (ranked #1313). Today it sits well outside the top 1,000 (around #9849), with roughly 8 babies named Phong each year. Phong's usage has held roughly steady recently. In total, around 1,011 babies have been registered with this name since 1880.