Petros first appears in the U.S. registration record in 1964. Its popularity climbed over the following decades. In 2007, 20 babies received the name (ranked #4756). Today it sits well outside the top 1,000 (around #7301), with roughly 12 babies named Petros each year. Petros's usage has held roughly steady recently. In total, around 706 babies have been registered with this name since 1880.