Cullie is primarily a Scottish name, with records indicating its use in the Lowlands since the 16th century. Although the name's origins predate Christianity, through centuries of cultural influence, it has been embraced and integrated into the Scottish Christian community. As a pet name, it might have originally referred to someone associated with the act of collecting, possibly as a nickname for a person with a thoughtful or meticulous nature. Today, however, its usage is as affectionate and loving, similar to other diminutives like "Billy" or "Daisy." In Scotland, Cullie is a particularly common name for boys.
In Christian terms, the name Cullie can carry varied spiritual meanings. Such meanings can be derived from the biblical figure Caleb, who was known for his faithfulness, strength, and courage. He was unique among his peers in his ability to trust in God's promises, manifesting his belief through his ordinary name. The biblical Caleb remained dedicated to both God and the land that God had given to him, much like the name Cullie can represent faithfulness, courage, and dedication to God.