Cassidey is an unusual and distinctive given name, thought to be of American origin. It is believed to have been invented by a parent who wished to give their child a unique moniker that would stand out among more traditional names. The name Cassidey has gained some popularity in recent years, particularly in the United States, where it was first registered as a given name in the 1990s.
"The name Cassidey had its peak years for newborns in 2001 and 2002 with 11 and 10 births respectively, while the most recent recorded year was 2014 with 6 births. Over time, from 1994 to 2014, there were a total of 74 babies named Cassidey."