Sekai is a distinctive boys' name in United States, ranking #8038 in 2017 with 10 recorded births. This places Sekai in the bottom 44% 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 2017, approximately 1 in every 185,032 boys born was named Sekai. RISING Recent data shows the name is currently rising.