Su is a distinctive girls' name in United States, ranking #13413 in 2022 with 7 recorded births. This places Su in the bottom 24% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 15 births ranking #7959. In 2022, approximately 1 in every 234,109 girls born was named Su. RISING Recent data shows the name is currently rising.