Onesimo is of Latin origin and means 'beneficial' or 'useful'. It was borne by a Christian slave in Corinth, who was mentioned in the New Testament as being greeted by Paul in his First Epistle to the Corinthians.
The name Onesimo has seen a varied trend in popularity over the past century, with peaks and valleys in the number of annual births. The highest years were 1982 with 16 births and 2009 with 9 births. Conversely, there have been several years with only 5 births each, most recently in 2022. In total, there have been 594 births recorded over this period.