Kelsy is a name of Welsh origin, derived from the word 'ceisyll', which means 'chief'. It is traditionally a boy's name, but it has also been used as a girl's name in some cases. The name Kelsy does not have any notable historical figures or characters associated with it, and its popularity has been relatively steady over time. It is not typically found among the top 1000 most popular names for either boys or girls in many countries.
"Kelsy experienced fluctuations in popularity over these years, with a notable spike in the late '70s and late '80s."