Kaysa is a ♀ female name.
Kaysa is the American spelling of Kajsa, which is a Swedish diminutive of the names Katharina or Karin and thus of Greek origin.
Kaysa means “each of the two” (from Greek “εκάτερος/hekateros”), “pure” (from Greek “καθαρός/katharos”), “torture” (from Greek “αἰκία/aikia”), “one hundred” (from Greek “hekaton/ἑκατόν”) or “far away” (from Greek “hekás/ἑκάς”).