 Bangladesh:Being replaced.
Still in used by Border Guard Bangladesh and other forces.

 Colombia: Some M1s still in use by Military Police and ceremonial units.

 Dominican Republic: Only used by Dominican military honor guard forces.

 India: Made locally and are still in service.

 Indonesia: Formerly used by Indonesian Armed Forces, now in use by Indonesian Police.

 Iran: Uses the West German-made M1s.

 Guatemala: Used only in the Guatemalan Army and Navy.

 Japan: Uses the Type 66 helmet, modeled after the M1 helmet that was supplied to the JSDF.
Currently used in non-combat operations.
Formerly used M1s supplied by the US to the JSDF before the adoption of the Type 66.

 Panama: Formerly used by former Panamanian military, now in use by Panamanian Public Forces.

 South Africa
 South Korea: Uses M1-style ballistic helmets made by Silver Star.

 Thailand
 Uruguay: Used South Korean-made M1s with some still in use.
 Bangladesh:Being replaced.Still in used by Border Guard Bangladesh and other forces.
 Colombia: Some M1s still in use by Military Police and ceremonial units.
 Dominican Republic: Only used by Dominican military honor guard forces.
 India: Made locally and are still in service.
 Indonesia: Formerly used by Indonesian Armed Forces, now in use by Indonesian Police.
 Iran: Uses the West German-made M1s.
 Guatemala: Used only in the Guatemalan Army and Navy.
 Japan: Uses the Type 66 helmet, modeled after the M1 helmet that was supplied to the JSDF. Currently used in non-combat operations. Formerly used M1s supplied by the US to the JSDF before the adoption of the Type 66.
 Panama: Formerly used by former Panamanian military, now in use by Panamanian Public Forces.
 South Africa
 South Korea: Uses M1-style ballistic helmets made by Silver Star.
 Thailand
 Uruguay: Used South Korean-made M1s with some still in use.
M1 helmet