This study focuses on the accumulated indigenous knowledge of the Yao ethnic minority in Bac Kan Province of Vietnam. Through centuries of observation and experimentation, the Yao people have developed complex farming systems, cultural practices, and a knowledge base well-suited to their environments. Data for this study was collected through surveys, interviews, and focus group discussions to gather indigenous knowledge on native crop varieties and animal breeds, weather forecasting, and the timing and location of cultivation practices. In so doing, this study documents unique examples of how indigenous knowledge is being used alone and blended with scientific knowledge to make accurate decisions and help local communities adapt to climate change. The case of the Yao people in northern Vietnam supports the argument that if indigenous knowledge were better integrated into adaptation planning and policies, its conservation and application would enhance resiliency to climate change in indigenous communities and beyond.