Cielle is a modern name built on the French word ciel, "sky" or "heaven", with the feminine -elle ending of Giselle and Noelle; its Spanish cousin Cielo is used the same way. It is a word name with a soft, celestial ring rather than a traditional given name. Cielle was ranked beyond number 12,000 for most of the 2010s, began to climb in 2021 and reaches number 2,698 in 2025, its best rank so far, with 64 births.