Koy is a unisex given name of uncertain origin, though it may derive from various sources. In some cultures, it's interpreted as a nature-inspired name, possibly meaning "shell" in Japanese or "river" in Apache. However, its true etymology remains obscure. The name Koy has gained popularity in recent years, likely due to its unique sound and potential meanings. It's often used for both boys and girls, adding to its versatility.
The name Koy experienced significant fluctuations in popularity over the years. It had a modest start with single-digit occurrences from 1970 to 1992. However, there was a notable surge beginning in 1993, reaching a peak of 46 births in 1997. Since then, its popularity has varied but generally maintained a higher level than the early years, with totals ranging between double-digit figures and around 30 births annually until recent years when it began to decline slightly again.