Tatumn is a distinctive girls' name in United States, ranking #6049 in 2001 with 19 recorded births. This places Tatumn in the top 34% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 26 births ranking #4930. In 2001, approximately 1 in every 94,766 girls born was named Tatumn. FALLING Recent data shows the name is currently falling.