Canadian MPs have unanimously voted to ban so-called conversion therapy.
The law would make putting anyone through the practice an offence punishable with up to five years in prison.
It will now pass to the country's Senate for approval, where it is unlikely to face resistance.
The Australian Medical Association (AMA) has previously called on state and territory governments to follow the lead of Victoria, the ACT and Queensland and outlaw coercive ‘conversion’ practices.
Tourism Minister Randy Boissonnault, who is also a special adviser to the Canadian Prime Minister Justin Trudeau on LGBTIQ+ issues, likened the practices to "torture".
He said: "This stuff was and is happening in dark places in our country and it has to stop.
"Nobody can consent to torture."
Conversion therapy is an umbrella term for interventions to change a person's sexual orientation or gender identity, based on a widely discounted belief that such a change is possible.
They are often clandestine and, apart from psychological treatments with contested evidence behind them, can also involve electric shocks, beatings, drugs or even exorcism.
Queensland and the ACT were the first jurisdictions to ban the practices in healthcare settings and Victoria's legislation, which passed the upper house in February, also covered religious settings.
It bans "carrying out a religious practice including but not limited to, a prayer based practice, a deliverance practice or an exorcism".
AMA President Omar Khorshid, speaking in November, said: "Conversion practices are a blatant example of the discrimination faced by LGBTQIA+ people in Australia and have no place in our society."
Omar Khorshid, president of the Australian Medical Association, has urged Australian jurisdictions to implement bans Source: AAP
Mr Khorshid's call was part of a wider push, and included a request for the Australian Medical Council to include LGBTIQ+ health knowledge as a graduate outcome for medical students.
Other versions of Canada's bill were introduced by Mr Trudeau's Liberals Party in the past two years, but failed to get through voting before parliament was dissolved, including in August for snap elections.
Canadian Justice Minister David Lametti said it was an "important day for Canadians".
He added: "It's an important day to be who you are.
"It's an important day to love who you want to love. And it's an important day to express yourself and to understand yourself the way you are and the way you want to be."
With AFP.
