Black-tailed

Black-tailed may refer to:

In mammalogy:

* Black-tailed Deer, species of deer found in western North America
* Black-tailed Gazelle, gazelle found in a large area of central Asia
* Black-tailed Hairy Dwarf Porcupine, South American porcupine species from the Erethizontidae family
* Black-tailed Jackrabbit, the common hare of the western United States and Mexico
* Black-tailed Marmoset, New World monkey that lives in Brazil
* Black-tailed Prairie Dog, squirrel

In other fields:

* Black-tailed Gnatcatcher, small, insectivorous bird which ranges throughout the Sonoran Desert and northern Mexico
* Black-tailed Godwit, large shorebird
* Black-tailed Gull, medium-sized gull
* Black-tailed Skimmer, European dragonfly
* Black-tailed Tityra, medium-sized passerine bird