Ousman is a distinctive boys' name in United States, ranking #6381 in 1999 with 10 recorded births. This places Ousman in the bottom 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 26 births ranking #4067. In 1999, approximately 1 in every 192,009 boys born was named Ousman. FALLING Recent data shows the name is currently falling.