Venerable Chao Khun Keng Khemako (Than Ajaan Keng) is a Singaporean monk from the Thai Forest Tradition of Luang Puu Mun. Chao Khun was ordained in 1987 under the recommendation of Than Ajaan Geoffrey (Thanissaro Bhikkhu). Luang Puu Jiak Cundo, Luang Puu Mun's disciple, was also one of his teachers.

Chao Khun is currently serving as the Abbot of Santi Forest Monastery in Johor Bahru, Malaysia, and President of Palelai Buddhist Temple, Singapore.