R. elegans may refer to:
Rallus elegans, the king rail, a waterbird species found in North America Ramodatodes elegans, a beetle species Raphitoma elegans, a sea snail species Rasbora elegans, the twospot rasbora, a ray-finned fish species Restrepia elegans, an orchid species Rhabdoderma elegans, an extinct genus of coelacanth fish that lived in the Carboniferous Rivetina elegans, a praying mantis species Rhodoplanes elegans, a bacterial species Rhopalomyces elegans, a common species of zygomycete fungus Rondeletia elegans, a flowering plant species