Jeferson is a distinctive boys' name in United States, ranking #6769 in 1999 with 9 recorded births. This places Jeferson in the bottom 42% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 41 births ranking #2914. In 1999, approximately 1 in every 213,343 boys born was named Jeferson. RISING Recent data shows the name is currently rising.