Dyan

Dyan is an English given name functioning as a variant spelling of Diana, which derives from the Latin name Diana, itself connected to an Indo-European root meaning divine or heavenly. Diana was the ancient Roman goddess of the moon and the hunt, lending the name long-standing mythological prestige. The spelling Dyan represents a modern phonetic simplification that emerged in the twentieth century. Related forms include Diane, Dianna, and Dianne.