Army bosses are looking at ditching ranks including “guardsman” and “rifleman” to make them gender neutral.
There is speculation that the changes might even mean officers are no longer called “Sir”.
The Ministry of Defence is compiling an “inclusive language guide”.
A spokesman said: “We are a modern employer and determined to offer an inclusive environment for all those serving their country.”
The Army has several ranks containing the word “man”, with “guardsman” used by the Brigade of Guards, and “rifleman” going back to the 19th Century and the Napoleonic wars.
Riflemen were famously depicted in Bernard Cornwell’s Sharpe novels and TV dramas starring Sean Bean.
The changes could see the introduction of "guardswoman” or even “rifleperson”.
The Royal Air Force is the only service with specific ranks of airwoman and aircraftwoman.
Last month it was revealed the Royal Electrical and Mechanical Engineers was considering abandoning “craftsman” for “technician”. It would also mean the Royal Navy getting rid of “Able Seaman”.
In the Royal Air Force, airmen and airwomen are told to use gender neutral titles if asked.
The MoD spokesman added: “There are no current plans to change rank titles or terms of address but discussion and debate is crucial to understanding the expectations of personnel.”