Marine Alexander Wayne Blackman, convicted of murdering an Afghan insurgent, comes from Taunton and was based in Plymouth.
Two Royal Marines who were acquitted by a court martial over the death of an Afghan insurgent should be named, judges have ruled.
However, their identities will not be released pending a possible move by their lawyers to take the issue on to the Supreme Court, the UK's highest court.
A judge has ruled that the anonymity of the Royal Marine convicted of murdering a seriously injured Afghan insurgent can be lifted.
The commando, known as Marine A during the court martial, has been named as Sergeant Alexander Wayne Blackman.
Two other servicemen who were acquitted, known as Marines B and C, can also be named, the judges ruled.
The question of whether two Royal Marines, against whom charges were discontinued, should be named will be the subject of a further hearing, judges have said.
Lord Chief Justice Lord Thomas, sitting with Mr Justice Tugendhat and Mr Justice Holroyde in London, said Marine A, who was convicted of murdering an Afghan insurgent, should be publicly named along with two servicemen who were acquitted by a court martial.
A court has ruled that a marine formerly based in Plymouth, and found guilty of murdering an Afghan insurgent, can be publicly named.
A decision on whether the names of five Royal Marines should be made public following a high-profile trial over the killing of an injured insurgent in Afghanistan will be made later today at the Court Martial Appeal Court in London.
It follows a hearing last week during which an argument was made on behalf of the servicemen that their lives will be at "real and immediate" risk if their names are released.
A distinguished Royal Marines general who led British forces to victory in the Falklands has called for clemency after a marine was found guilty of murdering an Afghan insurgent.
Major-General Julian Thompson told The Times that life imprisonment for the soldier, known as Marine A, would be too harsh.
He said: “Obviously it was wrong and everyone in the Royal Marines is quite clear about that.
“The Royal Marines are a family and it feels as though a member of the family has transgressed.
“I am sad for the man who did it, in that he probably had a moment of stupidity. I feel for him as I would my own son who might do something stupid.", he added.
He suggested a five-year term would be more appropriate for a crime committed in the pressure of war.
A Plymouth-based Royal Marine sergeant has been found guilty of murder - for shooting dead an injured Taliban fighter. No other member of the British armed forces has faced a charge of this kind during the ten years of the war in Afghanistan.
Two other commandos who were charged with encouraging and assisting him have been found not guilty at a court martial. Our defence correspondent John Andrews reports.
The murder of an Afghan insurgent by a Royal Marine was not "consistent" with the Ministry of Defence's ethos, values and standards, said Brigadier Bill Dunham, Deputy Commandant General Royal Marines.
In a statement released by the MoD, Brigadier Dunham added:
It is a matter of profound regret in this isolated incident that one marine failed to apply his training and discharge his responsibilities.
It is now for the Royal Marines to consider any impact from this case on the training given to our people as we seek to uphold the very highest standards that we constantly strive to instill and perpetuate.
There were gasps from relatives in the public gallery as the verdicts were returned at the court martial of three marines.
Judge Blackett told Marine A: "This court has found you guilty of murder. The mandatory sentence prescribed by law is imprisonment for life.
"This court now has to determine the minimum term you will serve before you are eligible for release. To help us do that, I am going to order that a report be prepared. I am adjourning this case until a later date.
"In the meantime, I direct that you are to be taken into custody."
Addressing the other two defendants, the judge added: "Marine B and Marine C, you have been found not guilty of murder and you are now free to return to your normal place of duties."The issue of anonymity will be decided at a later date."