68%RatingSave Gender Feminine Usage English (Modern) Pronounced Pron. /ˈkɛl.si/ [key·simplify] Meaning & HistoryExpand Links Variant of Kelsey. Related NamesFamily Tree·Details VariantsKelsea, Kelsey, Kelsi, Kelcey PopularityDetails Last ranked #909 in 2015 England and Wales Last ranked #938 in 2011 United States People think this name isRate·Details modern youthful informal natural wholesome refined comedic Categories ends in -ie, modern English