Coley is of American origin, derived from the English surname Cole, which is derived from the Middle English 'col', meaning coal. This name has been used as a given name since the mid-20th century and has gained popularity in recent years.
The name Coley has had varying popularity over the years, with a significant spike occurring between 1912 and 1923, during which there were more than 15 births each year, peaking at 25 births in 1926. However, after the 1930s, its usage gradually declined, and since the 1980s, it has been relatively uncommon, with fewer than 20 births recorded annually. In recent years (2020-2023), Coley has seen an average of around 7 births per year.