Khitan

Khitan or Khitai may refer to:
 * Khitan (circumcision), the Islamic circumcision rite
 * Khitan people, an ancient nomadic people located in Mongolia and northern China
 * Liao dynasty (916–1125), a dynasty of China ruled by the Khitan Yelü clan
 * Northern Liao (1122–1123), a regime in northern China
 * Qara Khitai (1124–1218), alternatively called the "Western Liao", successor to the Liao dynasty in northwestern China and Central Asia
 * Eastern Liao (1213–1269), a regime in northeastern China
 * Later Liao (1216–1219), a regime in northeastern China
 * Khitan language, a now-extinct language once spoken by the Khitan people
 * Khitan scripts (disambiguation), writing systems of the Khitan people, for the now-extinct Khitan language
 * Khitan large script, a logographic writing system
 * Khitan small script, a semi-syllabic and logographic writing system
 * Cathay in many languages