Onesimo is a distinctive boys' name in United States, ranking #9315 in 1998 with 6 recorded births. This places Onesimo in the bottom 18% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 11 births ranking #5557. In 1998, approximately 1 in every 318,553 boys born was named Onesimo. RISING Recent data shows the name is currently rising.