Koast is a brand-new American coinage, a respelling of the English word "coast" with the fashionable initial K seen in Kash, Kove and Kross. It has no history as a given name and no meaning beyond the word itself, which suggests the shoreline and a laid-back, surf-and-sand image. Koast first appeared in the US data in 2019 with a handful of births and has shot from number 4273 in 2024 to number 1718 in 2025.