Master Cpl. Malcolm McCarty was charged Wednesday with two counts of sexual assault in connection with a complaint filed in December.
A spokesman for the Provost Marshall's office says the alleged incidents took place at Canadian Forces Base Petawawa, where the 28-year-old McCarty is a member of the Royal Canadian Dragoons.
While the charges fall under the Criminal Code, McCarty will face trial in a military court.
It's not yet known where or when the case will go to court.
In the meantime, investigators were silent on details of the accusations, and the age and identity of the alleged victim hasn't been released.
If convicted, McCarty could also face a court martial, said Canadian Forces Public Affairs Officer Yves Desbiens.