Trajan is a distinctive boys' name in United States, ranking #3187 in 2007 with 36 recorded births. This places Trajan in the top 22% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 141 births ranking #1001. Since 1996, the popularity has increased by 350.0%. In 2007, approximately 1 in every 57,645 boys born was named Trajan. FALLING Recent data shows the name is currently falling.