Police have received more than 2,200 new firearms cases in the last two months, according to figures from Statistics Canada.
That is an increase of about 50 per cent over the same period in 2015.
Statistics Canada said more than 5,200 people were charged with offences related to the importation of firearms in Ontario last year, an increase from 4,600 charges.
“It is encouraging to see more guns being seized and confiscated, and we are continuing to work with the government to reduce the risk of gun violence in our communities,” said police chief Mark Saunders.
The numbers show that, of the more than 20,000 firearms seized from Ontarians in 2015, about 2,500 were handguns, with more than 1,500 being assault rifles.
Ontario has more than 6,000 gun registrants.
More than 7,000 Ontarians have registered their firearms through the province’s firearms registry.