Caellum is a distinctive boys' name in United States, ranking #7765 in 2025 with 10 recorded births. This places Caellum in the bottom 44% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 18 births ranking #5093. In 2025, approximately 1 in every 170,808 boys born was named Caellum. RISING Recent data shows the name is currently rising.