Adolphus is a distinctive boys' name in United States, ranking #5659 in 1999 with 11 recorded births. This places Adolphus in the top 49% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2001 with 12 births ranking #5673. Since 1996, the popularity has increased by 83.3%. In 1999, approximately 1 in every 174,553 boys born was named Adolphus. FALLING Recent data shows the name is currently falling.