Thousand Islands(redirected from Thousand Islands (Canada))
Also found in: Encyclopedia.
A group of about 1,800 islands of northern New York and southeast Ontario, Canada, in the St. Lawrence River at the outlet of Lake Ontario. The islands, some of which are privately owned, are a popular resort area.
(Placename) a group of about 1500 islands between the US and Canada, in the upper St Lawrence River: administratively divided between the two countries
a group of about 1500 islands in S Ontario, Canada, and N New York State, in the St. Lawrence River at the outlet of Lake Ontario: summer resorts.