Cobra II: The Inside Story of the Invasion and Occupation of Iraq is a 2006 book written by Michael R. Gordon, chief military correspondent for The New York Times, and Bernard E. Trainor, a retired Marine Corps lieutenant general, which details the behind-the-scenes decision-making leading to the invasion of Iraq in 2003. It then follows, in depth, the invasion itself and the early months of the occupation through summer 2003.

Considered comprehensive and even-handed, the book is widely hailed as the pre-eminent source of information on what actually happened and why, and how the Iraqi insurgency was germinated. The authors had access to a wide range of materials, including many classified documents, and access to the highest levels of the US and Iraqi government and military. They describe in great detail the meetings, correspondence, and positions of the various actors, including not only the US and Iraq, but other countries across the world as they considered the implications of joining the "Coalition of the Willing".

Cobra ( pronunciation (help·info)) is any of various species of venomous snakes usually belonging to the family Elapidae, most of which can expand their neck ribs to form a widened hood. Not all snakes commonly referred to as cobras are of the same genus, or even of the same family. The name is short for cobra capo or capa Snake, which is Portuguese for "snake with hood", or "hood-snake". When disturbed, most of these snakes can rear up and spread their necks (or hoods) in a characteristic threat display. A favorite of snake charmers, cobras are found from southern Africa, through southern Asia, to some of the islands of Southeast Asia.

Cobra may refer to:

Naja, also known as 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