Calum is a distinctive boys' name in United States, ranking #2397 in 2003 with 44 recorded births. This places Calum in the top 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 313 births ranking #799. In 2003, approximately 1 in every 44,892 boys born was named Calum. RISING Recent data shows the name is currently rising.