The Indian cobra, Naja naja,

A cobra  is a venomous snake, which is a member of the family Elapidae (elapids). The name is short for cobra de capelo (or cobra di capello), which is Portuguese for "snake with hood," or "hood-snake."[1] When disturbed, most of these snakes can rear up and spread their neck (or hood) in a characteristic threat display. However, not all snakes referred to as cobras are of the same genus, or even of the same family.

Cobra may refer to:

Any member of the genus Naja, a.k.a. typical cobras (with the characteristic ability to raise the front quarters of their bodies off the ground and flatten their necks in a threatening gesture), a group of venomous elapids found in Africa and Asia.
Any member of the genus Boulengerina, a.k.a. water cobras, a group of venomous elapids found in Africa.
Any member of the genus Aspidelaps, a.k.a. shield-nosed cobras or coral snakes, a group of venomous elapids found in Africa.
Any member of the genus Pseudohaje, a.k.a. tree cobras, a group of venomous elapids found in Africa.
Paranaja multifasciata, a.k.a. the burrowing cobra, a venomous elapid species found in Africa.
Ophiophagus hannah, a.k.a. the king cobra, a venomous elapid species found in India and southern Asia.
Hemachatus haemachatus, a.k.a. the spitting cobra or ringhals, a venomous elapid species found in Africa.
Micrurus fulvius, a.k.a. the American cobra or eastern coral snake, a venomous elapid species found in the southeastern United States.
Hydrodynastes gigas, a.k.a. the false water cobra, a mildly venomous colubrid species found in South America.
A taxonomic synonym for the genus Bitis, a.k.a. puff adders, a group of venomous vipers found in Africa and in the south of the Arabian Peninsula.