About the name Hélio
Hélio belongs to the Portuguese tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Hélio first appears in Social Security records in 1972. It climbed to its best-ever rank of #3973 in 2008, and in 2024 11 babies received the name — 326 in total since 1880. Those are the official counts, not estimates.