Sekai is a distinctive boys' name in United States, ranking #8693 in 2016 with 9 recorded births. This places Sekai in the bottom 39% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 56 births ranking #2444. In 2016, approximately 1 in every 210,801 boys born was named Sekai. RISING Recent data shows the name is currently rising.