Nikhil Manipuri Hindu Mahasabha, initially a Hindu nationalist organization founded in Manipur in 1934. NMHM was opposed to the increasing Manipuri nationalism, and sought to protect the interests of upper caste Hindus in the state. The organization was modelled after the Akhil Bharatiya Hindu Mahasabha.

The organization was led by Hijam Irabot Singh.

In 1938 NMHM changed name to Nikhil Manipuri Mahasabha, and turned into a political party. NMM became the major political force in the state at that time.

During the Second World War, many NMM leaders joined the Indian National Army.