Kaykaus, Keykavus, Kai Kaus, Keikavoos, or Keykavos (), may refer to:
People Kay Kāvus, legendary king Keikavus (Ziyarid), ruled from c. 1050 to 1087, wrote the Qabus-nama Kai Ka'us I (Paduspanid ruler), ruled from 1168 to 1184 Kaykaus I (died 1220) Kaykaus II (died 1279/1280) Keykavus (Shirvanshah), ruled from 1294 to 1317 Rukunuddin Kaikaus, Sultan of Bengal Ahmad Kaikaus (born 1961), Bangladeshi civil servant
Places Keykavus, Chaharmahal and Bakhtiari, Iran Keykavus, Khuzestan, Iran Keykavus-e Aghajari, Khuzestan Province, Iran
See also Kawas (disambiguation)