- Source: 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