M band may refer to:

• M band, a millimetre wave band from 60 to 100 GHz
• M band (infrared), an atmospheric transmission window centred on 4.7 μm
• M (band), a new-wave musical group of the late 1970s and 1980s
• M-band, part of a sarcomere

• Chen Pao Shen
• Chen Pi-hsien
• Chen Ping
• Chen Pixian
• Chen Po
• Chen Point Count
• Chen point count
• Chen Po Liang
• Chen Po-Liang
• Chen Po-liang
• Ch'en Po-ta
• Chen Qi
• Chen Qian
• Chen Qi (athlete)
• Chen Qili
• Chen Qimei
• Chen Qingping
• Chen Qi (table tennis)
• Chen Qitai
• Chen Qiuqi
• Chen Qi Zhen
• Chen Qi-Zhen
• Chen Qizhen
• Chenque Hill
• Chen Qun