Greenia may refer to: Greenia (phasmid), a genus of phasmids in the family Phasmatidae Greenia, a genus of arthropods in the family Laelapidae, synonym of Dinogamasus Greenia, a genus of nematodes in the family Rhabdolaimidae, synonym of Rogerus Greenia, a genus of plants in the family Poaceae, synonym of Limnodea