Ousman is a distinctive boys' name in United States, ranking #5977 in 2002 with 12 recorded births. This places Ousman in the top 48% 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 2002, approximately 1 in every 161,789 boys born was named Ousman. FALLING Recent data shows the name is currently falling.