Caelum is a distinctive boys' name in United States, ranking #3798 in 2015 with 28 recorded births. This places Caelum in the top 27% 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 97 births ranking #1690. In 2015, approximately 1 in every 68,438 boys born was named Caelum. RISING Recent data shows the name is currently rising.