Olusegun is a distinctive boys' name in United States, ranking #7670 in 1999 with 8 recorded births. This places Olusegun in the bottom 34% 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 8 births ranking #7670. Since 1996, the popularity has increased by 60.0%. In 1999, approximately 1 in every 240,011 boys born was named Olusegun. FALLING Recent data shows the name is currently falling.