Kalsey is of American origin, derived from the combination of two popular names, Casey and Leslie. This unique moniker gained prominence during the late 20th century, particularly in the United States. The name Kalsey typically follows a unisex pattern, although it's more commonly used for females. It carries no specific meanings or associations beyond its origin and has not yet become widespread globally, retaining a somewhat rare and distinctive quality.
The name Kalsey experienced a significant spike in popularity from 1993 to 1994, with the number of births more than doubling during that year. However, it appears that this trend was not sustained afterward, as there were fewer births each year following 1994.