Athanasios ranked #9484 among U.S. baby names in 2024. Since 1959, 1,260 babies have been named Athanasios, peaking in 1973 with 39 births. The 1970s were its biggest decade, with 285 births. Athanasios is on the rise, up about 20% over the past five years. It is predominantly a boys' name.