E. nana

E. nana may refer to:
 * Endolimax nana, an amoebozoa species found in the intestines of humans
 * Ericameria nana, the dwarf goldenbush or rubberweed, a flowering shrub species
 * Eurycea nana, the San Marcos salamander, a small species of aquatic, lungless salamander species native to the United States

Synonyms

 * Ephedra nana, a synonym for Ephedra frustillata, the Patagonian ephedra, a plant species found in Patagonia