U.S. intelligence officials and the governments of some European Union countries have accused Russia of interfering in their elections in recent years, allegations strongly denied by Moscow.
When asked whether she was worried Russia would interfere in the election, Chrystia Freeland said she was "very concerned."
"Our judgment is that interference is very likely and we think there have probably already been efforts by malign foreign actors to disrupt our democracy," she said, speaking at a media freedom event on the sidelines of a G7 foreign ministers meeting in France.
Freeland said such attempts were not aimed at securing a particular outcome in a national elections, but to polarize Western societies.
The foreign ministers of the G7 nations - the United States, France, Japan, Germany, Britain, Italy and Canada -- as well as the European Union are meeting in Dinard, Brittany, where they are expected later to agree on common norms that would seek to prevent foreign powers from destabilizing democratic nations.