Onni is a distinctive boys' name in United States, ranking #10567 in 2022 with 7 recorded births. This places Onni in the bottom 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2017 with 8 births ranking #9461. In 2022, approximately 1 in every 249,196 boys born was named Onni. STABLE Recent data shows the name is currently stable.