Lecanora confusa is a species of corticolous (bark-dwelling), crustose lichen in the family Lecanoraceae. It grows on the bark of trees and shrubs, particularly in coastal areas of Europe and North America. First identified in Sweden in 1955, this small, greenish-grey lichen forms smooth patches and is recognized by its pale yellowish-green reproductive structures (apothecia). Once thought extinct in the Netherlands, it was rediscovered in 2000 growing primarily on poplar trees. The species contains several unique secondary metabolites and is part of a group of similar-looking lichens related to Lecanora polytropa.

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