What does MOS mean in military?

There are hundreds of these roles available for aspiring Marines, roles the Marine Corps refers to as Military Occupational Specialties (MOS). These MOS are categorized into Military Occupational Fields, most of which are described on this page.

What is the meaning of my MOS?

Military occupation specialty code, used by the U.S. military to identify a specific job.

What are Army MOS called?

The Army calls their enlisted jobs military occupational specialties, or MOS. If you have a combat arms job, such as infantry or armor (tank driver), the Army combines basic training and job training into one single course, called OSUT, or One Station Unit Training.

Do Marines call it an MOS?

The Marines use the Military Occupational Specialty (MOS) Code to identify all the jobs in the Marine Corps. It’s a four-digit code to identify specific job specialties. MOSs are grouped into different occupational fields (the first two digits) and then by a specific job in that field (the last two digits).