Jameis is a distinctive boys' name in United States, ranking #2864 in 2014 with 41 recorded births. This places Jameis in the top 20% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 41 births ranking #2864. In 2014, approximately 1 in every 46,840 boys born was named Jameis. FALLING Recent data shows the name is currently falling.