Muqi Fachang or Muxi Fachang (1210?-1269?) (Chinese:牧溪法常; Japanese:牧谿 Mokkei) was a Chinese Zen Buddhist monk and painter who lived in the 13th century, around the end of the Southern Song dynasty. His surname is thought to be Xue; Muqi/Muxi was a hao or pseudonym, and Fachang a monastic name.