Onesimo is a distinctive boys' name in United States, ranking #8236 in 2002 with 8 recorded births. The name reached its all-time peak in 1997 with 11 births ranking #5557. Since 1996, the popularity has increased by 33.3%. In 2002, approximately 1 in every 242,684 boys born was named Onesimo. RISING Recent data shows the name is currently rising.