Koa is of Hawaiian origin, derived from the word "koa," which refers to an indigenous tree species found on the islands. This hardwood tree is considered sacred and is often used for various purposes such as canoe-building due to its strength and durability. The name Koa has gained popularity in recent years as a unisex given name, reflecting the beauty and resilience of the koa tree.
The name Koa appears to have gained significant popularity quite recently, with a notable surge in births from 2019 onwards. Prior to this, the number of births per year fluctuated between 5 and 14. However, since 2019, there has been a marked increase, reaching a peak of 121 births in 2022. Overall, over the span of these years, there have been a total of 577 births named Koa.