Calum is a distinctive boys' name in England & Wales, ranking #3256 in 2025 with 6 recorded births. This places Calum in the bottom 47% of ranked UK boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 614 births ranking #91. Since 1996, the popularity has decreased by 99.0%. In 2025, approximately 1 in every 45,323 boys born was named Calum. FALLING Recent data shows the name is currently falling.