Kaselyn is of American origin, derived from the names Cassandra and Elizabeth. It is composed of two parts: 'Kase', meaning 'treasurer' or 'watchful', and '-lyn', a suffix often used to create feminine names. Kaselyn first gained popularity in the United States during the late 20th century, likely influenced by the trend of creating unique, blended names. The name is not widespread internationally but can be found occasionally in English-speaking countries.
Kaselyn has seen a varied number of births each year since 2011, with the highest being 11 in 2015 and the lowest being 5 in 2014. The total number of births from 2011 to 2023 is 85.