Sonnie is a distinctive boys' name in England & Wales, ranking #1153 in 2025 with 25 recorded births. The name reached its all-time peak in 2009 with 42 births ranking #711. Since 1996, the popularity has increased by 150.0%. In 2025, approximately 1 in every 10,877 boys born was named Sonnie. FALLING Recent data shows the name is currently falling.