Onesimo is a distinctive boys' name in United States, ranking #5557 in 1997 with 11 recorded births. The name reached its all-time peak in 1997 with 11 births ranking #5557. Since 1996, the popularity has increased by 83.3%. In 1997, approximately 1 in every 171,372 boys born was named Onesimo. RISING Recent data shows the name is currently rising.