Macrurus, meaning long-tailed, may refer to:
Dapalis macrurus, extinct species of prehistoric ray-finned fish in the family Ambassidae Elusor macrurus, (Mary River turtle), species of turtle in the family Chelidae Limnocalanus macrurus, species of crustacean belonging to the family Centropagidae Megarhyssa macrurus, the long-tailed giant ichneumon wasp, a wasp in the family Ichneumonidae Oligodon macrurus, (Angel's kukri snake), a species of snake in the family Colubridae Pseudomonacanthus macrurus (strap-weed filefish), species of filefish in the family Monacanthidae Urodacus macrurus, species of scorpion in the family Urodacidae