The Nida Canal (Polish: Kanał Nidzki) is a Masurian canal, connecting Lake Nidzkie with Guzianka Wielka. The road passes through Ruciane-Nida to Węgorzewo (via Mikołajki and Giżycko). It is the shortest canal on the Great Masurian Lakes route, on a par with the Sztynort Canal.

There are two bridges over the canal: one railway line between Szczytno–Pisz and a highway from Ruciane-Nida–Pisz.

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