Preussia can refer to:
*
''Preussia'' (fungus), a genus of fungi
*
''Preussia'' (katydid), a genus of bush crickets or katydids in the family Tettigoniidae, subfamily
Phaneropterinae
The Phaneropterinae, the sickle-bearing bush crickets or leaf katydids, are a subfamily of insects within the family Tettigoniidae. Nearly 2,060 species in 85 genera throughout the world are known. They are also known as false katydids or round-h ...
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