Trudeau also announced in a statement that Canada would be doubling its contribution this year for humanitarian aid for the refugees to USD 20 million.
Former senior MP Bob Rae will "reinforce the urgent need to resolve the humanitarian and security crisis in Myanmar and to address the situation affecting vulnerable populations, including the Rohingya Muslim community," read the statement, released as an international donor conference opened in Geneva.
Rae will also advise Trudeau on how best to support "those affected and displaced by the recent violence."
More than 600,000 people from the Muslim minority group have fled violence in Myanmar's northern Rakhine state since August.
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Rohingyas have been systematically deprived of basic rights over decades in majority Buddhist Myanmar.
In the latest crackdown, Myanmar's security forces have fired indiscriminately on unarmed civilians, including children, and committed widespread sexual violence, according to UN investigators.
Trudeau called Myanmar's leader Aung San Suu Kyi last month to urge her to end the violence.