Sion is a moderately popular boys' name in England & Wales, ranking #285 in 2000 with 96 recorded births. This places Sion in the top 7% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2000 with 96 births ranking #285. Since 1996, the popularity has increased by 20.0%. In 2000, approximately 1 in every 3,054 boys born was named Sion. RISING Recent data shows the name is currently rising.