|File:Iron Butterfly (1969).png|
|Origin||San Diego, California, United States|
|Genres||Psychedelic rock, heavy metal, acid rock, blues rock, hard rock|
|Years active||1966–1971, 1974–1985, 1987–present|
|Associated acts||Rhinoceros, Captain Beyond|
- Buckley 2003, p. 523 "It is widely believed that the term 'heavy metal' was coined to describe the less than delicate sound of Iron Butterfly, a band vilified when they first emerged and still not accorded the respect they deserve."