Ruairi is a moderately popular boys' name in England & Wales, ranking #497 in 2025 with 77 recorded births. The name reached its all-time peak in 2021 with 80 births ranking #496. Since 1996, the popularity has increased by 133.3%. In 2025, approximately 1 in every 3,532 boys born was named Ruairi. STABLE Recent data shows the name is currently stable.