Kayan may refer to:
Ethnography
- Kayan people (Myanmar)
- Padaung language
- Zayein or Kayan Lahta
- Yinbaw or Kayan Kangan
- Geku or Kayan Kadao
- Kayan people (Borneo)
- Kayan language (Borneo), dialect cluster spoken in Borneo
- Kayan–Murik languages, group of Austronesian languages that includes the Kayan dialect cluster
Geography
- Kayan, Baghlan, town in Baghlan Province, Afghanistan
- Kayan, Armenia, town in Armenia
- Kayan, Iran, city in Iran
- Kian, Iran
- Kian, Isfahan, Iran
- Kayan, Ergani
- Kayan Hulu, North Kalimantan, Indonesia
Other
- Kayan (musician), Indian musician
- Sayed Kayan, spiritual, leadership title for Sadats of Kayan.