45%RatingSave Gender Masculine & Feminine Usage English (Rare) Pronounced Pron. /ˈkɛl.si/ [key·simplify] Meaning & HistoryExpand Links Variant of Kelsey. Related NamesFamily Tree·Details VariantsKelsea, Kelsey, Kelsi, Kelsie People think this name isRate·Details modern youthful informal common rough simple comedic Categories rare English