Oisin is a distinctive boys' name in England & Wales, ranking #535 in 2019 with 71 recorded births. The name reached its all-time peak in 2021 with 96 births ranking #433. Since 1996, the popularity has increased by 407.1%. In 2019, approximately 1 in every 4,280 boys born was named Oisin. RISING Recent data shows the name is currently rising.