Blackneck (disambiguation)

Blackneck may refer to:


 * Lygephila pastinum, also known commonly as the blackneck, a species of moth
 * Blackneck garter snake (Thamnophis cyrtopsis), a species of snake
 * Black-necked swan (Cygnus melanocoryphus), a species of bird
 * Dark-shouldered snake eel (Ophichthus cephalozona), also known commonly as the black-neck snake eel