| Jaya Simhavarman VI | |
| Raja-di-raja | |
| Spouse: | Parameśvarī |
| Issue: | Indravarman VI |
| Birth Date: | ? |
| Birth Place: | Champa |
| Death Date: | 1400 |
| Death Place: | Champa |
| Full Name: | Jaya Siṁhavarmadeva Śrī Harijāti Virasinha Campapura |
| Succession: | King of Champa |
| Reign: | 1390–1400 |
| Predecessor: | Po Binasuor |
| Successor: | Indravarman VI |
| Regnal Name: | Śrī Jayasiṁhavarmadeva |
| House: | Vr̥ṣu dynasty |
Ko Cheng, or La Khai, was a king of Champa from 1390 - 1400. This general of Che Bong Nga's led the retreat back to Champa in 1390, following the death of Che Bong Nga by a musketry salvo. Back in Champa, he declared himself king, usurping the two sons of Che Bong Nga, Che Ma-no Da-nan and Che San-no.[1]
During his reign, he abandoned most of the territory won by his predecessor, Che Bong Nga.[2] [3]
. George Coedès. Walter F. Vella. trans.Susan Brown Cowing. The Indianized States of Southeast Asia. 1968. University of Hawaii Press. 978-0-8248-0368-1.