The Defence Forces have said that of 79 troops found guilty of crimes under civil and military law over the past four years, 54 of them remain in service.
Soldiers convicted of offences including misuse of drugs, assault, breaches of COVID-19 restrictions, and robbery or burglary are still serving.
Earlier this year, Taoiseach Simon Harris said that any member of the Defence Forces with a criminal conviction should not remain in the organisation.
It followed outrage over the suspended sentence given to soldier Cathal Crotty following a brutal assault on Natasha O’Brien in Limerick in 2022.
Data released under Freedom of Information laws shows that 63 members of the military had been convicted of a crime under civil law since January 2021.
Many, but not all, appear to have been for more minor offences, according to the figures.
There were 38 convictions for road traffic offences, with 33 of those people still serving in the Defence Forces.
Four soldiers were successfully prosecuted under misuse of drugs laws, but only one of them remains in the military.
There was one case involving theft and fraud and that person is no longer a soldier.
There were eight convictions for assault and three of these people continue to be members of the Defence Forces.
The figures also showed that one person had been prosecuted for possession of an offensive weapon and is still serving.
Two were convicted of burglary or robbery and both remain members while one person who broke pandemic restrictions continues in service.
Five successful prosecutions for public order offences were listed, with three of those involved “still serving” in the military.
The Defence Forces said that two members had been convicted of sexual assault, and one of those has already left the organisation.
They said: “[This other] individual has appealed their conviction, and as per An Tánaiste direction, this individual has been put on special leave pending the outcome of their appeal.”
There was also one conviction for harassment and that person also remains a serving member.
Asked about the records, a spokesman said the Defence Forces had been clear there was “no place for any form of gender-based violence, abuse or any form of inappropriate behaviour” by members whether on or off duty.
He said: “The Defence Forces unequivocally condemns any actions by serving personnel that are contrary to military regulations or that do not reflect our values.
“Any conviction in a civilian court may have implications for the retention and service of members of the Defence Forces, as stipulated in military regulations.”
The spokesman said that in practical terms the Defence Forces always had to await the culmination of any appeals before discharges or other measures could commence.
He added: “Where disciplinary issues occur within the scope of military discipline, it remains a matter for the independent offices of the Director of Military Prosecutions and the Military Judge.”