 Albania
Since the 2010s, the Albanian Army has been using G-Class vehicles.

 Algeria
Since the 2010s, the Algerian Army, Gendarmerie Nationale and the Algerian police have been using several models of G-Class vehicles 4x4 6x6 G 500.
Most of those vehicles are manufactured in Bouchekif factory Tiaret, owned by the Algerian army.
First G-Class wagons released in 2015.

 Argentina
Since the 1980s, the Argentine Army has used the MB-230G (short and long chassis) for different purposes.
900 remain in service.

 Australia
In October 2007, Mercedes-Benz became the preferred tenderer for the Australian Defence Force to replace the fleet of Land Rover Perentie in Project Land 121 Overlander.
Mercedes-Benz was the sole tenderer with neither Toyota for the Land Cruiser or Land Rover for the Defender submitting a proposal.
In October 2008, an initial contract for 1200 vehicles was signed.
2,268 vehicles were purchased with ten variants including 6x6.
Australia is the first military customer to receive 6×6 vehicles and these are the first six-wheel military vehicles built by Mercedes-Benz since 1941.

 Austria
The Austrian Army has been a long time user of various Puch G models.

 Belgium
The Belgian Police or "Gendarmerie-Rijkswacht" has been a long time user of first G 500 models.

 Bulgaria
The Bulgarian Army operates 600+ vehicles in various configurations, most of them armed.

 Canada
A total of 1,159 vehicles have been ordered by the Canadian Army beginning in late 2003.
An armoured kit can be fitted (or removed) in 8 hours by three soldiers.
Their light armour has been criticised for leading to loss of life in Afghanistan, however it is considerably better than the Iltis predecessor.

Delivery of these vehicles to Reserve units has also begun.
They will be deployed in armoured reconnaissance units.
It is in the final stages of fully replacing the Iltis in most units as the armoured reconnaissance vehicle in use LFCA.
Other units will replace the Iltis with a militarized Chevrolet Silverado known as the MILCOTS (or colloquially as the "Milverado".)
For the most exposed missions in Afghanistan 75 RG-31 Nyalas built by BAE Land Systems OMC, South Africa were used.

 Croatia
Croatia bought 300 to 320 vehicles for needs of Croatian army and for operations in Afghanistan additional 30 RG-31 vehicles were delivered.
Croatia uses mix of 4×4 vehicles in peacekeeping operations and the G-Class is a very popular choice within the Croatian Army.
G-Class is supplemented by Land Rover Wolf and Iveco LMV.

 Cyprus
 Denmark
The Danish military bought the 240 GD (/24, /28 and /34 variants) to supersede the M151A1, the Volkswagen 181 ("Jagdwagen") and the Land Rover 88.
First deliveries of the 240 GD were in 1985 and later the 290 GD (/24 and /28 variants) were also introduced.
More than 1,300 have been put in service.
A few 300 GE's have also been used — mainly by the Danish army EOD-services.
Currently the Danes are taking delivery of over 2,000 270CDIs in several variants, starting in 2003.

 East Timor
used by units of Army of the Timor Leste Defence Force.

 Egypt
The Egyptian Army uses the G 320 (4 × 4) armoured personnel carrier has been designed as a private venture by the Kader Factory for Developed Industries and is based on the chassis of the commercial German Mercedes-Benz MB 320G (4 × 4) light vehicle.
This vehicle is based on the long-wheelbase version of the German Mercedes-Benz G 320 4 × 4 with the chassis frame being modified by a heavy-duty suspension which has been designed to withstand the additional weight imposed by the armour package.

 Estonia
The Estonian Defence Forces have a small number of various G-Class vehicles, which were purchased to replace the outdated UAZ and Volkswagen Iltis vehicles.

 Finland
The Finnish Army uses the Geländewagen mostly as armored vehicles and ambulances, but other versions are also in service.

 France
The French Army has the Peugeot P4 which is a derivative from the G-Class equipped with Peugeot engine and equipment.

 Germany
The German Armed Forces uses the G-Class under the name "Wolf".
Over 12,00
 Albania
Since the 2010s, the Albanian Army has been using G-Class vehicles.
 Algeria
Since the 2010s, the Algerian Army, Gendarmerie Nationale and the Algerian police have been using several models of G-Class vehicles 4x4 6x6 G 500. Most of those vehicles are manufactured in Bouchekif factory Tiaret, owned by the Algerian army. First G-Class wagons released in 2015.
 Argentina
Since the 1980s, the Argentine Army has used the MB-230G (short and long chassis) for different purposes. 900 remain in service.
 Australia
In October 2007, Mercedes-Benz became the preferred tenderer for the Australian Defence Force to replace the fleet of Land Rover Perentie in Project Land 121 Overlander. Mercedes-Benz was the sole tenderer with neither Toyota for the Land Cruiser or Land Rover for the Defender submitting a proposal. In October 2008, an initial contract for 1200 vehicles was signed. 2,268 vehicles were purchased with ten variants including 6x6. Australia is the first military customer to receive 6×6 vehicles and these are the first six-wheel military vehicles built by Mercedes-Benz since 1941.
 Austria
The Austrian Army has been a long time user of various Puch G models.
 Belgium
The Belgian Police or "Gendarmerie-Rijkswacht" has been a long time user of first G 500 models.
 Bulgaria
The Bulgarian Army operates 600+ vehicles in various configurations, most of them armed.
 Canada
A total of 1,159 vehicles have been ordered by the Canadian Army beginning in late 2003. An armoured kit can be fitted (or removed) in 8 hours by three soldiers. Their light armour has been criticised for leading to loss of life in Afghanistan, however it is considerably better than the Iltis predecessor.
Delivery of these vehicles to Reserve units has also begun. They will be deployed in armoured reconnaissance units. It is in the final stages of fully replacing the Iltis in most units as the armoured reconnaissance vehicle in use LFCA. Other units will replace the Iltis with a militarized Chevrolet Silverado known as the MILCOTS (or colloquially as the "Milverado".) For the most exposed missions in Afghanistan 75 RG-31 Nyalas built by BAE Land Systems OMC, South Africa were used.
 Croatia
Croatia bought 300 to 320 vehicles for needs of Croatian army and for operations in Afghanistan additional 30 RG-31 vehicles were delivered. Croatia uses mix of 4×4 vehicles in peacekeeping operations and the G-Class is a very popular choice within the Croatian Army. G-Class is supplemented by Land Rover Wolf and Iveco LMV.
 Cyprus
 Denmark
The Danish military bought the 240 GD (/24, /28 and /34 variants) to supersede the M151A1, the Volkswagen 181 ("Jagdwagen") and the Land Rover 88. First deliveries of the 240 GD were in 1985 and later the 290 GD (/24 and /28 variants) were also introduced. More than 1,300 have been put in service. A few 300 GE's have also been used — mainly by the Danish army EOD-services. Currently the Danes are taking delivery of over 2,000 270CDIs in several variants, starting in 2003.
 East Timor
used by units of Army of the Timor Leste Defence Force.
 Egypt
The Egyptian Army uses the G 320 (4 × 4) armoured personnel carrier has been designed as a private venture by the Kader Factory for Developed Industries and is based on the chassis of the commercial German Mercedes-Benz MB 320G (4 × 4) light vehicle. This vehicle is based on the long-wheelbase version of the German Mercedes-Benz G 320 4 × 4 with the chassis frame being modified by a heavy-duty suspension which has been designed to withstand the additional weight imposed by the armour package.
 Estonia
The Estonian Defence Forces have a small number of various G-Class vehicles, which were purchased to replace the outdated UAZ and Volkswagen Iltis vehicles.
 Finland
The Finnish Army uses the Geländewagen mostly as armored vehicles and ambulances, but other versions are also in service.
 France
The French Army has the Peugeot P4 which is a derivative from the G-Class equipped with Peugeot engine and equipment.
 Germany
The German Armed Forces uses the G-Class under the name "Wolf". Over 12,00
Mercedes-Benz G-Class