R. gracilis

R. gracilis may refer to:
 * Reithrodontomys gracilis, the slender harvest mouse, a rodent species
 * Rhacheosaurus gracilis, an extinct marine crocodyliform species from the Late Jurassic of Germany
 * Rhapis gracilis, the slender bamboo palm, a multi-stemmed palm tree species native to southern China
 * Rhogeessa gracilis, the slender yellow bat, a vesper bat species found only in Mexico
 * Rhombonotus gracilis, a jumping spider species known from Queensland, Australia

Synonym

 * Rana gracilis, a synonym for Fejervarya pulla, a frog species