Oswin is a distinctive boys' name in United States, ranking #5918 in 2015 with 15 recorded births. This places Oswin in the top 42% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 28 births ranking #3861. In 2015, approximately 1 in every 127,751 boys born was named Oswin. FALLING Recent data shows the name is currently falling.