Kaisy is of American origin, derived from the German surname 'Kayser', which means 'emperor' or 'czar'. It gained popularity as a given name in the United States during the 20th century.
"Kaisy experienced a peak in popularity between 2008 and 2010 with 11 and 12 births respectively, but has since seen a decline, with only 5 births each in 2017 and 2021. The name's total births span over three decades, from 1989 to 2022."