Habu

is a Japanese name used to refer to a number of species of venomous pitvipers:

* The following species are found in the Ryukyu Islands of Japan:
** "Trimeresurus elegans", a.k.a. the Sakishima habu, found in the southern Ryukyu Islands
** "Trimeresurus flavoviridis", a.k.a. the Okinawan habu
** "Trimeresurus tokarensis", a.k.a. the Tokara habu, found in the Tokara Islands
** "Ovophis okinavensis", a.k.a. the Hime habu

* The following species are not found in Japan:
** "Trimeresurus gracilis", a.k.a. the Kikushi habu, found in Taiwan.
** "Trimeresurus mucrosquamatus", a.k.a. theTaiwan habu or Chinese habu, found in Southeast Asia.
** "Ovophis monticola", a.k.a. the Arisan habu, found in Southeast Asia.

Habu may also refer to:
* A nickname for the SR-71 Blackbird reconnaissance aircraft.
* "Chiropsalmus quadrigatus", a.k.a. the box jellyfish, or in Japan as the "habu kurage" (kurage = jellyfish), a venomous jellyfish.
* Habu, a computer mouse jointly made by Microsoft and Razer