Ms Boden, 28, was named on this year's Civilian Gallantry list, which was released in London on Thursday. She was one of two Australians killed when three terrorists went on a rampage on London Bridge. The other was Sara Zelenak, a 21-year-old nanny from Brisbane.

Six other people were also killed in the attack and 48 people were injured before London police shot dead the terrorists.

"As you can imagine we're just really proud of her, proud of the person she was," her mother Christina Boden told Adelaide's Advertiser.

Foreign Minister Julie Bishop said her thoughts were with the Boden family on "what must be a sad and proud day".

"Kirsty Boden was a brave Australian who lost her life while selflessly helping others during the London Bridge attack," Ms Bishop said in a statement.

"Ms Boden showed courage and compassion, putting the lives of others before hers during a terrifying and tragic event."

Ms Boden, originally from Loxton in South Australia's Riverland, worked as a nurse at London's Guy's and St Thomas' Hospital.

"As she tried to save the life of an injured person, the terrorists attacked her and she was fatally wounded," the official citation reads.

"It is without a doubt that Kirsty Boden displayed courage and compassion when, without concern for her own safety, she went to assist those who were injured.

"She could have taken cover to protect herself, as most people caught up in such a serious and life threatening situations would have done. However, being a nurse, she took her training to care for others to the highest level."

British backpacker Thomas Jackson has also been posthumously honoured for trying to save fellow Briton Mia Ayliffe-Chung during a frenzied knife attack at a Queensland hostel in 2016.

Mr Jackson, who died trying to save Ms Ayliffe-Chung, was posthumously awarded a Queen's Gallantry Medal.

His parents Leslie and Sandra Jackson described it as a "bittersweet moment" for the family but said they were "inestimably proud" that his actions had been recognised.

OTHERS WHO RECEIVED MEDALS:

* Spanish banker Ignacio Echeverria, 39, who died as he tried to stop the knife-wielding terrorists with only his skateboard - George Medal

* Police officer Wayne Marques, 39, badly injured after fighting off all three terrorists armed with only his baton - George Medal

* Off-duty police officer Charles Guenigault, 26, who rushed to the aid of PC Marques and was also stabbed - George Medal

* Two members of the public, Ellen Gauntlett and Justin Jones, who helped PC Guenigault and stayed by his side from the scene right through to the hospital - Queen's Commendation for Bravery.

* Romanian Florin Morariu who threw bread crates at the terrorists and herded 20 people into his bakery to keep them safe - Queen's Commendation for Bravery

* Leon McLeod, 30, who was on patrol with PC Marques and helped victims - Queen's Gallantry Medal.

* Daniel Richards, who comforted Ms Ayliffe-Chung as she died - Queen's Gallantry Medal.

Australian Associated Press